Application of the Living Lab concept combined with the case-based study and reference-induced self-education model in thoracic surgery nursing teaching / 中华医学教育探索杂志

Objective:To investigate the application effect of the Living Lab concept combined with the teaching model of case-based study (CBS) and reference-induced self-education (RISE) in thoracic surgery nursing teaching.Methods:A total of 132 nursing students who participated in 11 rounds of training (12 nursing students per round) in Department of Thoracic Surgery, The Affiliated Hospital of Inner Mongolia Medical University were included in the study, and according to the teaching method, they were divided into control group and observation group, with 66 nursing students in each group. The students in the control group received routine teaching, and those in the observation group received the Living Lab concept combined with CBS-RISE teaching. Assessment results were compared between the two groups, and the critical thinking ability and degree of satisfaction with teaching were evaluated for both groups. SPSS 22.0 was used to perform the t test. Results:Compared with the control group, the observation group had significantly higher objective question score (48.82±4.21 vs. 46.73±4.54, P<0.05), subjective question score (33.12±3.86 vs. 31.59±3.47, P<0.05), and total score (81.02±7.57 vs. 76.34±7.91, P<0.05). After training, compared with the control group, the observation group had significantly higher total score and scores of the dimensions such as truth seeking, open mindedness, analyticity, systematicity, self-confidence, inquisitiveness, and cognitive maturity ( P<0.05). The observation group also had a higher degree of satisfaction with teaching methods, teaching contents, and teachers compared with the control group ( P<0.05). Conclusion:In thoracic surgery nursing teaching, the application of the Living Lab concept and CBS-RISE can improve the assessment results of nursing students and enhance their critical thinking ability, with a high degree of teaching satisfaction among nursing students.

Clinical evaluation of the efficacy and safety of heating physiotherapy goggles in the treatment of meibomian gland dysfunction / 中华实验眼科杂志

Objective:To evaluate the efficacy and safety of heating physiotherapy goggles in the treatment of meibomian gland dysfunction (MGD).Methods:A randomized controlled study was performed.Forty-four MGD patients were recruited in Wenzhou Medical University Eye Hospital from July 2021 to January 2022.Two patients were lost to follow-up.The patients were randomly divided into experimental group treated with heating physiotherapy goggles and control group treated with hot towels according to the random envelope method, with 21 patients (21 eyes) in each group.Throughout the study, the examiner was blinded.The data of the worse eye were analyzed.At baseline, 2 weeks and 4 weeks after treatment, the Ocular Surface Disease Index (OSDI), tear meniscus height (TMH), fluorescein breakup time (FBUT), corneal fluorescein staining score (CFS), lid margin hyperemia score and meibomian gland function scores were measured to evaluate the efficacy; visual acuity, intraocular pressure and slit lamp microscopy were examined to assess the safety.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Wenzhou Medical University Eye Hospital (No.2021-177-K-153-01).Results:There were significant differences in OSDI scores between before and after treatment ( Ftime=16.528, P<0.001). No significant difference was found in OSDI scores between 30.46±17.31 at 2 weeks after treatment and 35.43±18.22 before treatment in control group ( P=0.405). The OSDI score at 2 weeks after treatment was 26.27±16.47, which was significantly lower than 39.24±17.96 before treatment in experimental group ( P=0.001). The eyelid margin hyperemia score was 0.0(1.0, 2.0) at 4 weeks after treatment in experimental group, which was significantly lower than 2.0(1.0, 3.0) in control group (Wald χ2=11.444, P=0.001). The morphologic scores of meibomian gland orifices at 2 and 4 weeks after treatment were both 1.0(0.0, 1.0) in experimental group, which were significantly lower than 2.0(1.0, 3.0) and 2.0(1.0, 2.5) in control group (Wald χ2=15.082, 23.172; both at P<0.001). The scores of meibum quality at 2 and 4 weeks after treatment were 1.0(0.5, 2.0) and 1.0(0.0, 1.5) in experimental group, which were significantly lower than 2.0(1.0, 2.0) and 2.0(1.0, 2.5) in control group (Wald χ2=4.638, 9.395; both at P<0.05). The scores of upper meibomian gland expressibility at 2 and 4 weeks after treatment were both 2.0(1.0, 2.0) in experimental group, which were significantly lower than 3.0(2.0, 3.0) and 2.0(2.0, 2.5) in control group (Wald χ2=6.489, 11.562; both at P<0.05). The score of lower meibomian gland expressibility at 4 weeks after treatment in experimental group was 1.0(0.5, 2.0), which was significantly lower than 2.0(2.0, 3.0) in control group (Wald χ2=24.085, P<0.001). The FBUT at 2 and 4 weeks after treatment were 3.00(1.75, 3.50) and 3.00(2.00, 4.00) seconds in experimental group, which were significantly longer than 1.00(0.75, 2.00) and 2.00(1.00, 3.00) seconds in control group (Wald χ2=8.576, 8.539; both at P<0.05). There were significant differences in TMH among different time points ( Ftime=8.874, P<0.001). In control group, the TMH at 4 weeks after treatment was (0.24±0.09) mm, which was significantly higher than (0.18±0.05) mm before treatment ( P<0.05). In experimental group, the TMH at 4 weeks after treatment was (0.23±0.09) mm, which was significantly higher than (0.17±0.05) mm before treatment ( P<0.05). Significant differences were found in CFS score among different time points (Wald χ2time=10.116, P=0.006). There was no statistically significant differences in CFS score between before and after treatment in control group (Wald χ2=1.781, P=0.410). In experimental group, the CFS scores at 2 and 4 weeks after treatment were 0.0(0.0, 1.5) and 0.0(0.0, 0.0), which were significantly decreased in comparison with 0.00(0.00, 4.00) before treatment (both at P<0.05). In experimental group, the visual acuity converted to the logarithm of the minimum angle of resolution at 2 and 4 weeks after treatment were 0.10(0.00, 0.22) and 0.10(0.00, 0.22), which was significantly better than 0.10(0.00, 0.40) before treatment (both at P<0.05). There was no significant change in intraocular pressure at different time points between the two groups ( Fgroup=0.432, P=0.515; Ftime=0.329, P=0.721). No serious adverse effects occurred in both groups during the follow-up period. Conclusions:Compared with hot towel therapy, the use of heating physiotherapy goggles can relieve ocular discomfort of MGD patients more rapidly and improve the function and status of the meibomian gland more significantly.Heating physiotherapy goggles can treat MGD safely and effectively.

Historical Evolution and Modern Clinical Application of Shengyang Yiweitang / 中国实验方剂学杂志

Shengyang Yiweitang is one of the first 100 classical prescriptions published by the National Administration of Traditional Chinese Medicine. It originated from the Clarifying Doubts about Damage from Internal and External Causes by physician LI Dongyuan of Jin dynasty， and is composed of Astragali Radix， Ginseng Radix et Rhizoma， Glycyrrhizae Radix et Rhizoma， Atractylodis Macrocephalae Rhizoma， Poria， Pinelliae Rhizoma， Citri Reticulatae Pericarpium， Angelicae Pubescentis Radix， Saposhnikoviae Radix， Notopterygii Rhizoma et Radix， Bupleuri Radix， Paeoniae Radix Alba， Alismatis Rhizoma， and Coptidis Rhizoma. With the effects of replenishing Qi， promoting Yang， clearing heat and removing dampness， Shengyang Yiweitang is used to treat spleen-stomach weakness and dampness-heat accumulation syndrome. Using bibliometrics， the authors systematically sorted out the source，composition， dosage， preparation， efficacy， indications， principle of composition， origin and processing of drugs，and modern clinical application of the prescription， and explored its history and key information. Additionally， it was found that Shengyang Yiweitang was widely used in modern clinical practice and was suitable for multisystem diseases， of which digestive system （264） was the most common， accounting for 41.71%， followed by urogenital system （57， 9.00%） and nervous system （48， 7.58%）. Although the treatment scope was wide， the pathogenesis of the diseases in traditional Chinese medicine belongs to "spleen-stomach weakness"， which fully reflected Li's academic thought of "internal injury of spleen and stomach leads to various diseases". The key information of Shengyang Yiweitang was determined by summarizing the relevant ancient books and modern literature， so as to provide accurate reference for its rational clinical application and further research and development.

Historical Evolution and Modern Clinical Application of Shengyang Yiweitang / 中国实验方剂学杂志

Shengyang Yiweitang is one of the first 100 classical prescriptions published by the National Administration of Traditional Chinese Medicine. It originated from the Clarifying Doubts about Damage from Internal and External Causes by physician LI Dongyuan of Jin dynasty， and is composed of Astragali Radix， Ginseng Radix et Rhizoma， Glycyrrhizae Radix et Rhizoma， Atractylodis Macrocephalae Rhizoma， Poria， Pinelliae Rhizoma， Citri Reticulatae Pericarpium， Angelicae Pubescentis Radix， Saposhnikoviae Radix， Notopterygii Rhizoma et Radix， Bupleuri Radix， Paeoniae Radix Alba， Alismatis Rhizoma， and Coptidis Rhizoma. With the effects of replenishing Qi， promoting Yang， clearing heat and removing dampness， Shengyang Yiweitang is used to treat spleen-stomach weakness and dampness-heat accumulation syndrome. Using bibliometrics， the authors systematically sorted out the source，composition， dosage， preparation， efficacy， indications， principle of composition， origin and processing of drugs，and modern clinical application of the prescription， and explored its history and key information. Additionally， it was found that Shengyang Yiweitang was widely used in modern clinical practice and was suitable for multisystem diseases， of which digestive system （264） was the most common， accounting for 41.71%， followed by urogenital system （57， 9.00%） and nervous system （48， 7.58%）. Although the treatment scope was wide， the pathogenesis of the diseases in traditional Chinese medicine belongs to "spleen-stomach weakness"， which fully reflected Li's academic thought of "internal injury of spleen and stomach leads to various diseases". The key information of Shengyang Yiweitang was determined by summarizing the relevant ancient books and modern literature， so as to provide accurate reference for its rational clinical application and further research and development.

Mechanism underlying inhibition of inflammatory responses induced by α7nAChR agonist postcondi?tioning alone or in combination with remote limb ischemic postconditioning during myocardial I∕R in rats: the relationship with GSK?3β / 中华麻醉学杂志

Objective To evaluate the relationship between the mechanism underlying inhibition of inflammatory responses induced by α7 nicotinic acetylcholine receptor(α7nAChR)agonist postcondition?ing alone or in combination with remote limb ischemic postconditioning during myocardial ischemia?reperfu?sion(I∕R)and glycogen synthase kinase?3β(GSK?3β)in rats. Methods Eighty adult male Sprague?Dawley rats, aged 8 weeks, weighing 290-320 g, were divided into 4 groups(n=20 each)using a ran?dom number table: I∕R group, α7nAChR agonist postconditioning group(group P), remote limb ische?mic postconditioning group(group L)and α7nAChR agonist postconditioning plus remote limb ischemic postconditioning group(group P+L). Myocardial I∕R was induced by 30 min occlusion of the left anterior descending branch of coronary artery followed by 120 min reperfusion. Specific α7nAChR agonist PNU282987 2 mg∕kg was intravenously injected immediately before reperfusion in group P. In group L, limb ischemia was induced by tourniquet occlusion of bilateral hind paws for 10 min starting from 20 min of myocardial ischemia, and the tourniquet was released at the beginning of reperfusion. Combination of inter?vention measures previously described in P and L groups was performed in group P+L. Venous blood sam?ples were taken at 120 min of reperfusion for determination of serum troponin I(TnI)and creatine kinase?MB(CK?MB)concentrations, myocardial infarct size(IS)and expression of phosphorylated GSK?3β [p?GSK?3β(Ser536)], NF?κBp65 and phosphorylated nuclear factor?κBp65(p?NF?κBp65)in myocar?dial tissues(by Western blot). Results Compared with group I∕R, myocardial IS and serum cTnI and CK?MB concentrations were significantly decreased, the expression of p?GSK?3β(Ser9)in ischemic area was up?regulated, and the expression of p?NF?κBp65 in ischemic area was down?regulated in P, L and P+L groups(P<0.05). Compared with group L, myocardial IS and serum cTnI and CK?MB concentrations were significantly decreased, the expression of p?GSK?3β(Ser9)in ischemic area was up?regulated, and the expression of p?NF?κBp65 in ischemic area was down?regulated in group P+L(P<0.05). Conclusion The mechanism by which α7nAChR agonist postconditioning alone or in combination with remote limb is?chemic postconditioning inhibits inflammatory responses during myocardial I∕R may be related to inhibiting GSK?3β activity in rats.

Relationship between autophagy and diabetes mellitus-caused influence on ischemic preconditioning-induced cardioprotection in rats / 中华麻醉学杂志

Objective To evaluate the relationship between autophagy and diabetes mellitus-caused influence on ischemic preconditioning ( IP )-induced cardioprotection in rats. Methods Clean-grade healthy male Sprague-Dawley rats, aged 12 weeks, weighing 290-320 g, were used in this study. Diabe-tes mellitus was induced by high-fat and high-sucrose diet ( lasting for 1 week) and intraperitoneal streptozo-tocin 50 mg∕kg ( for 2 consecutive days) and confirmed by fasting blood glucose level≥16. 65 mmol∕L ( for 1 week) . Thirty rats with diabetes mellitus, weighing 350-450 g, were divided into 3 groups ( n=10 each) using a random number table method: sham operation group ( DM-S group) , myocardial ischemia-reperfusion ( I∕R) group ( DM-IR group) and IP group ( DM-IP group) . Another 30 non-diabetic rats were selected and divided into 3 groups ( n=10 each ) using a random number table method: sham operation group (S group), myocardial I∕R group (IR group) and IP group. Myocardial ischemia was induced by ligation of the anterior descending branch of left coronary artery for 30 min followed by 120 min reperfusion. IP was produced by 3 cycles of 5-min ischemia followed by 5-min reperfusion prior to establishment of myo-cardial I∕R injury model in IP and DM-IP groups. Blood samples were collected from the internal jugular vein at the end of reperfusion for measuring serum concentrations of cardiac troponin I ( cTnI) and creatine kinase-MB ( CK-MB) . The rats were then sacrificed and myocardial tissues were obtained for determination of myocardial infarct size and expression of microtubule-associated protein 1 light chain 3 Ⅱ ( LC3 Ⅱ) , Beclin-1, phosphatidyl-inositol 3-kinase (PI3K), protein kinase B (Akt), phosphorylated Akt (p-Akt) and mammalian target of rapamycin ( mTOR) ( by Western blot) . p-Akt∕Akt ratio was calculated. Results Compared with S group, the serum cTnI and CK-MB concentrations were significantly increased, the percentage of myocardial infarct size was increased, the expression of LC3Ⅱand Beclin-1 in myocardial tis-sues was up-regulated, the expression of PI3K and mTOR was down-regulated, and p-Akt∕Akt ratio was decreased in IR group (P<0. 05). Compared with IR group, the serum cTnI and CK-MB concentrations were significantly decreased, the percentage of myocardial infarct size was decreased, the expression of LC3Ⅱand Beclin-1 in myocardial tissues was down-regulated, the expression of PI3K and mTOR was up-regulated, and p-Akt∕Akt ratio was increased in IP group ( P<0. 05) . Compared with DM-S group, the se-rum cTnI and CK-MB concentrations were significantly increased, the percentage of myocardial infarct size was increased, the expression of LC3Ⅱ and Beclin-1 in myocardial tissues was up-regulated, the expres-sion of PI3K and mTOR was down-regulated, and p-Akt∕Akt ratio was decreased in DM-IR group ( P<0. 05) . There was no significant difference in the parameters mentioned above between DM-IP group and DM-IR group (P>0. 05). Conclusion The mechanism by which diabetes mellitus abolishes IP-induced cardioprotection may be related to inhibiting activation of PI3K-Akt-mTOR signaling pathway and enhanced autophagy in rats.

Role of PI3K/Akt or JAK/STAT-3 signaling pathways in reduction of myocardial ischemia-reperfusion injury by combination of limb ischemic and morphine postconditioning in rats / 中华麻醉学杂志

Objective To evaluate the role of the phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt)or Janus kinase(JAK)/signal transducer and activator of transcription 3(STAT-3)signaling pathways in reduction of myocardial ischemia-reperfusion(I/R)injury by combination of limb ischemic and morphine postconditioning in rats.Methods Eighty SPF healthy male Sprague-Dawley rats,aged 8 weeks,weighing 280-320 g,were used in the study.Myocardial I/R was induced by occlusion of the left anterior descending branch of the coronary artery for 30 min followed by 120 min reperfusion.The rats were divided into 8 groups(n=10 each)using a random number table:I/R group,limb ischemic postconditioning group(LIP group),morphine postconditioning group(group MP),combination of limb ischemic and morphine postconditioning group(LIP+MP group)and signaling pathway blocker groups(I/Rb group,LIPb group,MPb group,LIP+MPb group).In I/R,LIP,MP and LIP+MP groups,the animals were sacrificed at the end of reperfusion,and myocardial specimens in ischemic and non-ischemic regions were obtained for determination of phosphorylated STAT-3(p-STAT-3),STAT-3,phosphorylated Akt(p-Akt)and Akt expression(by Western blot)and STAT-3 and Akt mRNA expression(by polymerase chain reaction).In I/Rb,LIPb,MPb and LIP+MPb groups,PI3K/Akt signaling pathway blocker LY294002 0.3 mg/kg was intravenously injected in 5 rats of each group,and JAK/STAT-3 signaling pathway blocker AG490 5 mg/kg was intravenously injected in the other 5 rats of each group.The animals were sacrificed at the end of reperfusion,and myocardial specimens in the ischemic region were obtained for determination of myocardial infarct size.Results Compared with I/R group,the p-STAT-3/STAT-3 ratio in LIP,MP and LIP+MP groups and p-Akt/Akt ratio in LIP+MP group were significantly increased,and the expression of STAT-3 and Akt mRNA was up-regulated in LIP+MP group(P0.05).When JAK2 inhibitor AG490 was applied,the myocardial infarct size was significantly smaller in LIP+MPb group than in I/Rb,LIPb and MPb groups(P0.05).Conclusion Combination of limb ischemic and morphine postconditioning can enhance the activation of PI3K/Akt or JAK/STAT-3 signaling pathways,and the cardioprotection is dependent on the integrity of the PI3K/Akt signaling pathway and partially dependent on the integrity of the JAK/STAT-3 signaling pathway when applied in combination in rats.

The clinical efficacy of captopril combined with simvastatin for treating patients with early diabetic nephropathy / 中国基层医药

Objective To observe the clinical efficacy of captopril combined with simvastatin for treating patients with early diabetic nephropathy.Methods 180 patients with diabetic nephropathy were randomly divided into three groups,and each group had 60 cases,group A was given captopril for treatment,group B was given simvastatin and group C was received captopril and simvastatin for treatment.The clinical efficacy,renal function before and after treatment and incidence of adverse reactions were compared in three groups.Results The clinical efficacy of group C was significantly better than group A and group B ( P ＜ 0.05 ) ; after treatment,the value of Ma/Cr,SCR and Bun of three groups were lower than pre-treatment ( t =3.12,3.08,3.17,3.41,3.19,3.20,3.04,3.44,3.48,all P ＜ 0.05 ) ;and the value of Ma/Cr,SCR and Bun after treatment in group C were significantly lower than group A and group B ( t =4.58,4.69,5.02,4.89,5.11,4.87,all P ＜0.05 ) ;the incidence of adverse reactions in group C was significantly lower than the other two groups.Conclusion Captopril combined with simvastatin could significantly improve the clinical efficacy of the early diabetic nephropathy and had small side effects.

Education of foreign community general practitioners and its enlightenment / 中华医学教育探索杂志

Community medical staff construction centered on general practitioner is a basic engineering to improve the quality and enhance the level of basic medical and health service system.The developed western countries have up-to-date experiences in general and further education of community general practitioners.By combining these experiences with China's national conditions,this thesis explored the 'targeted recruitment-employment mode' for general practitioners and discussed the reform in curriculum,teaching content and teaching organization in order to promote the practice base construction and further education after graduation as well as to cultivate all-around talents of high quality who can meet the requirements of the basic-level medical work.

Significance and detection of levels of IL-8,TNF-α in serum of patients with aplastic anemia / 中国基层医药

Objective To investigate the significance of levels of IL-8,TNF-α in serum of patients with aplastic anemia(AA).Methods Serum levels of IL-8 and TNF-α in 45 patients and 30 normal controls were measured by enzyme linked immunosorbent assay.Results The serum levels of IL-8,TNF-α increased significantly in AA and acute AA(AAA)group than in the control group(P＜0.05),there was no statistical significance between chronic AA(CAA)group and the control group(P＜0.05),and the levels in AAA group were much higher than in CAA group(P＜0.05).The serum level of IL-8 was positively related to TNF-αin AA group(r=0.682,P＜0.05).Conclusion There are immunological disorders in patients with AA and the overproduction of IL-8,TNF-α might be involved in the immunopathogenesis of AA,AAA.

The effect of CpG ODN on Th1/Th2 type immune response in mice immunized with rHBsAg / 中国免疫学杂志

Objective:To investigate the Th1 type immune response effects of CpG oligodeoxynucleotide(CpG ODN) immunized with recombinant hepatitis B surface antigen(rHBsAg).Methods:The CpG ODN and rHBsAg were injected into the back leg tibialis anterior(TA) muscle of BALB/c mice for two times.The serum anti-HBs IgG sub-class ratio of IgG2a/IgG1 were detected by ELISA.The level of IFN-?,IL-2 and IL-12 in the supernatant of induced splenocyte with bioactived assay.The serum IL-4 and IL-10 level were detected by ABC-ELISA.Results:The anti-HBs IgG sub-class IgG2a titer of additional CpG ODN groups are obviously higher than those of other groups;The result showed that high level of Th1 type cytokines including IL-2,IFN-? and IL-12 were induced in CpG ODN groups,where the level of Th2 type cytokines such as IL-4 and IL-10 were inhibited obviously.Conclusion:CpG ODN has enhanced efficacy of rHBsAg for anti-HBs IgG sub-class production of IgG2a and induced the expression of Th1 type cytokines wherease inhibited the expression of Th2 type cytokines.

Study on the effects of the lymphocyte proliferation immunized with rHBsAg and CpG ODN in mice / 中国免疫学杂志

Objective:To investigate the effects of lymphocyte proliferation using the synthetic oligodeoxynucleotide containing CpG motif(CpG ODN) as immunal adjuvant immunized with the recombinant hepatitis B surface antigen(rHBsAg) in mice.Methods:BALB/c mice were randomly divided into five groups,injected into back leg tibialis anterior(TA) muscle for two times.The spleen and thymus lymphocytes proliferation was tested by MTT and()~3H-TdR incorporation respectively.Results:Analytical study showed that all groups compared with control the proliferation of spleen and thymus lymphocytes was increased obviously,except the specific proliferation of thymus lymphocyte there didn't obviously difference in CpG ODN plus vaccine group and the vaccine group.Meanwhile,the proliferation of the groups plus CpG ODN was much stronger than the not-CpG ODN groups in all the tests.Conclusion:CpG ODN has the ability stimulating the lymphocyte proliferation in mice obviously anti could have potential adjuvant effectiveness.

Subd iaphragmatic vagotomy reduce the responses of fever and c-Fos expression inrat PVN and NTS to LPS / 中国免疫学杂志

Objective:To study the possibility that responses of fever and c- Fos expression in rat PVN and NTS to intraperitoneal administration of LPS are rnediated by vagal afferents. Methods: Rectal temperature was detected by digital temperature detecting instrument. c-Fos expressis was detected by immunohistochemistry staining.Results:The rectal temperature change value in vagotomy LPS gnoup was significantlydecreased compared with that in sham IPS group,and there was striking difference betwen them, p ＜0.05.It was increased significantlycompared with that in vagotomy NS group, P ＜ 0.05.The percentage of c-Fos positive neurons in rat PVN and NTS in vagotomy LPS group wassignificantly decreased compared with that in sham LPS group,and there were difference between them, p ＜0.01.Itwas stnkingly increased compared with that in vagotomy conrol group,respectively, P ＜0.01.Conclusion:The results indicate that vagus nerve is one of thepathways of peripheal LPS signal communicating to CNS.

THE EXPRESSIONS OF VCAM-1 AND MHC CLASSⅡ MOLECULES IN THE EXPERIMENTAL AUTOIMMUNE ENCEPHALOMYELITIS RAT BRAIN VASCULAR ENDOTHELIAL CELLS / 解剖学报

Objective To explore the surface molecule changes of the experimental autoimmune encephalomyelitis (EAE) rat brain vascular endothelial cells. Methods The expressions of vascular cell adhesion molecule\|1(VCAM\|1) and major histocompatibility complex (MHC) class Ⅱ molecules in the EAE rat brain vascular endothelial cells were tested by immunohistochemistry. The level of tumor necrosis factor (TNF) and interferon\|?(IFN\|?) in defferent clinic grade EAE were tested by MTT [3\|(4 5\|dimethythiazol\|zyl)\|2^5\|diphenyl) tetrazolium bromide] method. Results There were inducible expressions of VCAM\|1 and MHC class Ⅱ molecules in the EAE rat brain vascular endothelial cells compared with control. The sera of EAE rats possessed the activities of TNF and IFN\|?.Conclusion\ In the CNS inflammation, the change surface molecules in the brain vascular endothelial cells may suggest that it plays important roles in EAE pathogenesis.\;[

EFFECT OF PANAXATRIOL SAPONIN ( PTS ) ON HUMAN LYMPHOKINE PRODUCTION AND ITS CHARACTERISTICS / 中国药理学通报

Under stimulation of PHA,PHA + TPA,or PHA + PTS the time ke-netics of DNA,RNA,protein synthesis and lymphokine secretion by human lymph node cell expressed different responses. The PTS did not increase the DNA and RNA synthesis, but increased the protein synthesis ( 60% ) . TPA increased the RNA synthesis ( 18% ) , therefor increased the protein synthesis ( 40% ) . Both of TPA and PTS increased the production of 5 kinds of lymphokines (IL-1 , IL-2 , IL-3, BCGF, TFNr). We infer that PTS and TPA increase the lymphokine production through different gene regulation. TPA Promotes the translation of lymphokine mRNA。

PROMOTING EFFECT OF PANAXATRIOL GINSENOSIDE ON GENE EXPRESSION OF HUMAN INTERLEUKINE-3 / 中国药理学通报

Promoting effect of panaxatriol ginsenoside ( PTGS ) on inter-leukine-3(IL-3 ) induction of phyto-hemagglutinin ( PHA ) stimulated human lymph node cells was observed. The results showed that PTGS enhanced the IL-3 production on each time of IL-3-induction kinetics, maximally by 30% ( 72h ) . Furthermore, it was observed that IL-3 mRNA from PHA+PTGS-stimulated lymph node cells translated more IL-3 than PHA-stimulated lymph node cells on each time of IL-3 mRNA-induction kinetics, maximally by 40% ( 60h ) , using the methods of wheat germ cell-free in vitro translation system and IL-3 bioassay.

Role of the Cell-Mediated Immunity in Onset of EAE / 中国免疫学杂志

In the present paper, it is reported that immunelogic event during unset of experimehtaleallrgic encephalomyelitis (EAE) is studied by sevaeral immunological parameters, including thymectomy at birth in Guinea Pigs, identification of various cellular and humoral immunolo-gic functions. It is observed that thymectomy at birth suppressed onset of EAE and severityof EAE is related to cellular immunologic function but not to humoral immunity. All ofthese results indicated that cell-mediated immunity is responsible for the onset of EAE.

The Induction of Suppressor Cells in Murine Spleensby Stress and Its Effect on the Responsive for the Mitogen / 中国免疫学杂志

In this paper, it has been found that such stressors as operation or swimming in cold watermay suppress the mitogenic response of murine spleen cells to ConA or LPS, whichis closely related to the action of suppressor cells.Using the plastic-adherence method, the plastic-adherence cells in spleen(PAC)was removed or obtained. The difference of mitogenic responsivebefore and after the removal of PAC is very apparent in stressed mice, being much lower thannormal before the renioval of PAC and near to normal after removing PAC. It is interestingthat the lymphocyte transformation stimulated by LPS is suppressed predominantly after swim-ming stress instead of those by ConA in operation stress.It has also been observed that theindomethacin may block the induction of suppressor PAC by stress, which means that the pro-staglandins may play an important role in the induction and action of suppressor PAC.

Immunoreactive angiotensin II (irAII) translated by lymphocyte mRNA from spontaneously hypertensive rats (SHR) and T lymphosarcoma cells in vitro / 中国免疫学杂志

irAII was translated by SHR and WKA rat spleen lymphocyte and thymocyte RNA in wheat germ free synthesizing system. The translation efficency of irAII at the most proper concentration of SHR immune cell RNA is higher than that of WKA rat immune cell RNA. the result also showed that irAII translation was increased in the rat spleen lymphocytes stimulated by concanavalin A (ConA). Furthermore, irAII, irAI and renin-like were translated by MLA-144 cell (T lymphosarcoma cell) poly (A) RNA in cell free translation system from wheat germ. The results proved that the immune cells of rats produce irAII in a constitutive or inducible fashion for the first time.

Effect of artrial natriuretic polypeptides on intracellular free calcium concentration in immune cells of spontaneously hypertensive rats / 中国免疫学杂志

The effect of artrial natriuretic polypeptides on the intracellular free. calcium concentration of immune cells of spontaneously hypertensive rats has been investigated. It was found that artrial natriuretic polypeptides could raise directly the intracellular free calcium concentration of thymocytes, splenocytes and lymphonode cell, or cooperate with Con A in increasing the intracellular free calcium concentration of rat lymphocytes and T lymphocytes except for B cells. It was also found that artrial natriuretic polypeptides could cooperate with IL-2 in increasing the intracellular free calcium concentration of rat lymphoblast induced by Con A. The extent of increased intracellular free calcium concentration induced by artrial natriuretic polypeptides in immune cells of spontaneously hypertensive rats was lower than that of WKA rats.