Correlation of blood gas analysis was made in 41 cases of young infa-nts younger than 3 months of age suffering from acute broncho -pneu-monia. Correlation of PO_2 with PCO_2 HCO_3~-, pH and BE was mace accord-dingly and with each other. Among which PO_2 and PCO_2 were the main items. Altogether 15 rairs of correl-alion in all were made.PO_2 and PCO_2 are significantly negatively correlated (P

AIM:To observe the treatment for ptosis patients with severe undercorrection after frontal muscle flap suspension surgery. · METHODS: Totally 46 patients ( 67 eyes ) were randomly divided into 2 groups: 23 cases ( 33 eyes ) in Group A were given conjoint fascial sheath ( CFS ) suspension surgery; 23 cases ( 34 eyes ) in Group B Whitnall ligament suspension. Postoperative follow-up was 6mo. Corrected rate, recurrence rate and postoperative adverse reactions were compared and analyzed. ·RESULTS:The corrected rates of the two groups were both satisfied without significant difference between the two groups (P>0. 05). the Whitnall ligament suspension surgery had less recurrence than CFS suspension surgery, but the difference was not statistically significant (P>0. 05). The rate of hypophasis after CFS suspension surgery was significantly less than that after Whitnall ligament suspension (P<0. 05). ·CONCLUSION:The two operations both have satisfied corrected rate and low recurrence rate, the Whitnall ligament suspension surgery is less damaging and more easy to operate, while CFS suspension surgery is repeatable and less rate of hypophasis.

BACKGROUND:Placental mesenchymal stem cells are rich in source and easily obtained, which can differentiate into osteoblasts, nerve cells and liver cells. Additionally, there is no immune rejection and ethical issues in the clinical application. Therefore, placental mesenchymal stem cells are considered to be a good source of adult stem cells.OBJECTIVE:To observe the effect of placental mesenchymal stem cell transplantation in the repair of endometrial lesions in rats.METHODS:Endometrial damage models were established in rats by means of thermal damage, and on the 15th day after modeling, these rat models were randomly divided into four groups (n=10 per group):intrauterine injection of 1 mL of allogeneic placenta mesenchymal stem cell suspension (intrauterine transplantation group), intrauterine injection of the same amount of PBS (intrauterine control group), tail vein injection of 1 mL of allogeneic placenta mesenchymal stem cell suspension (intravenous transplantation group), and tail vein injection of the same amount of PBS (intravenous control group). The female rats experiencing the third estrus after modeling were caged with male rats to observe whether the vaginal plug appeared. The female rats were killed the same day when the vaginal plug was observed, and uterus tissues were taken to detect the number of endometrial glands as well as perform immunohistochemistry and western blot detection.RESULTS AND CONCLUSION:The number of endometrial glands was highest in the intrauterine transplantation group followed by the intravenous transplantation group, and lowest in the two control groups (P < 0.05). The expression of integrin αvβ3 shown by immunohistochemistry and western blot was highest in the intrauterine transplantation group followed by the intravenous transplantation, and lowest in the two control groups (P < 0.05). These findings indicate that the placental mesenchymal stem cell transplantation can repair damaged endometrial tissues in rats to different degrees,by increasing endometrial glands count and improving the endometrial receptivity.

Humans ; Infant ; Job Syndrome ; diagnosis ; immunology ; therapy ; Male

Objective To investigate the risk factors for occurring cerebral microbleeds( CMBs)in patients with ischemic stroke Methods A total of 184 consecutive patients with ischemic stroke admitted from January 2012 to January 2014 in General Hospital of Beijing Military Command were enrolled prospec-tively. They were divided into either a CMB group( n=60 )or a non-CMB group( n=124 )according to whether head MRI magnetic sensitive weighted imaging( SWI)revealed CMBs or not. The general clinical data and serum biochemical results of the patients in both groups were collected. Renal creatinine clearance ( Ccr)was calculated,and the data of both groups were analyzed by the univariate and multivariate analyses. Results (1)The results of univariate analysis showed that there were significant differences in age(63 ± 10 vt. 58 ± 10 ),male( 65. 0%[ 39/60 ]vs. 49. 2%[ 61/124 ]),the incidence of leukoaraiosis( LA ) (73. 3%[44 cases]vs. 47. 6%[59 cases]),and serum homocysteine(Hcy)levels(20 ± 8 vs. 16 ± 6μmol/L)between the CMB group and the non-CMB group(P<0. 05). The Ccr level(89 ± 10 mL/(min·1.73m2)of the CMB group was lower than(106 ±6mL/(min·1.73m2)of the non-CMB group. There was significant difference(P <0. 05).(2)Multivariate logistic regression analysis showed that age(OR,1. 103,95%CI1. 024—1. 989,P =0. 028),LA(OR,3. 121,95%CI 1. 310—7. 436;P <0. 05)and impaired kidney function(OR,1. 890,95%CI 1. 358—3. 076;P<0. 01)were the independent risk factors for the occurrence of CMBs in patients with ischemic stroke. Conclusion Age,LA and impaired kidney function are the independent risk factors for occurring CMBs in patients with ischemic stroke.

Organ transplantation is the gold standard of treatment for patients with end-stage organ failure.However,transplant recipients must take immunosuppressive drugs lifelong to fight against rejection,which is inevitably caused by the recipient' s immune system in response to transplanted foreign tissues.Despite advances in the prevention of acute rejection,it is still a significant and potentially devastating complication of solid organ transplantation.Moreover,chronic allograft dysfunction as a result of acute and chronic alloimmune-mediated injury still develops in a majority of transplant recipients regardless of continuous immunosuppression.While host adaptive immune responses elicited by T lymphocytes are primarily responsible for allotransplant rejection,emerging evidence supports an important role of the innate immune system in the development of organ rejection.Innate immune recognition is initiated by a set of diverse receptors that belong to different protein families including the family of toll-like receptors (TLRs).TLR signaling is a highly specialized system that can identify a variety of microbial and endogenous mediators,and activate the innate immune system in response to danger.The discovery of TLRs over the past 10 years has started a new era in understanding the molecular events that initiate and regulate the inflammatory response following organ transplantation.They influence the adaptive immune reactions and contribute to ischemic reperfusion injury,acute and chronic allograft rejection,and tolerance induction.Their role as potential targets for therapeutic intervention has just begun to be appreciated.In this article,we summarize the structural and functional characteristics of TLRs and their ligands.We focus on the studies to define the roles of TLRs in ischemic reperfusion injury,allotransplant rejection,and immune regulation in both animal models and clinical transplantation.

Objective To investigate the combined detection and clinical significance of autoantibodies in patients with autoimmune hepatitis (AIH).Methods Collected 1 593 cases of patients with hepatic dysfunction,33 cases were diagnosed as AIH.Serum anti-smooth muscle antibody (ASMA),soluble liver antigen/liver pancreas (SLA/LP) antibody,liver kidney microsomal-1 (LKM-1) antibody,hepatic cell solute antigen type-1 (LC-1) antibody,anti-mitochondrial antibody (AMA),antinuclear envelope glycoprotein (gp) 210 antibody,anti sp100 antibody,antinuclear antibody(ANA),anti extractable nuclear antigen antibody spectrum (ENA) and anti neutrophil cytoplasmic antibody (ANCA) were measured in patients.The clinical manifestations were recorded.Results In 33 patients with AIH,the positive rate of ANA was 81.8％(27/33).For the diagnosis of AIH,the sensitivity/specificity rate of ASMA were 57.6％(19/33)/97.6％(161/165).The sensitivity/specificity rate of LKM-1 antibody were 12.1％(4/33) /91.5％(151/165).The sensitivity/specificity rate of SLA/LP antibody were 6.1％(2/33)/99.4％(164/165).The sensitivity/specificity rate of anti LC-1 antibody were 9.1％ (3/33)/99.4％ (164/165).There were no antisp100 antibody and anti-gp210 antibody in AIH.Conclusion The diagnostic rate of AIH is improved by combined detection of autoantibodies.

Objective To investigate the relationship between retinal vascular lesions and cerebral microbleeds ( CMBs) . Methods One hundred twenty-three consecutive patients with cerebral infarction who could sit and finish fundus photography at the Department of Neurology, General Hospital of Beijing Military Command from August 2013 to August 2014 were enrolled prospectively. After informed consent, the patients underwent head MRI examination and bilateral eye fundus photography. They were divided into either a cerebral microbleed group ( CMB group, n =52 ) or a non-cerebral microbleed group ( nCMB group,n=71) according to whether they had CMBs or not. The general clinical data and retinal vascular lesions ( microaneurysms,hard exudates,cotton wool spots,bleeding spots,focal retinal arteriolar narrowing, arteriovenous cross sign,and silver thread-like changes) of both groups were compared. Results (1)There were significant differences in age,hypertension,diabetes,systolic blood pressure,diastolic blood pressure, fasting blood-glucose,triglyceride,and C reaction protein between the CMB group and the non-CMB group (all P<0. 05). (2) The incidences of hard exudates,focal retinal arteriolar narrowing,and arteriovenous cross sign of patients with CMB were higher than those with non-CMB,and there were significant differences (χ2 =6.233,7.675,and9.544,respectively;P=0.040,0.031,and0.019,respectively).(3)There were significant differences in the incidences of hard exudates,focal retinal arteriolar narrowing,and arteriovenous cross sign in patients with different severity of CMBs (Z= -2. 317,-2. 294 and -2. 157,respectively;P=0. 029,0. 033,and 0. 039,respectively). In patients with severe CMB,there were more patients with hard exudates,focal retinal arteriolar narrowing,and arteriovenous cross sign. (4) The age (OR,3. 623, 95%CI 2. 631-7. 866),hypertension (OR,4. 348,95%CI 3. 734-10. 563),diabetes (OR,3. 831,95%CI 2.126-9. 245),fasting blood-glucose (OR,3. 329,95%CI 2. 631-11. 012),arteriovenous cross sign (OR,5. 437,95%CI 3. 441-13. 606),and hard exudates (OR,4. 054,95%CI 3. 137-13. 252) were the independent risk factors for the occurrence of CMBs. Conclusion The arteriovenous cross sign, focal retinal artery narrowing,and hard exudates in retinal vascular lesions are associated with the CMBs and different degree of CMBs classification. Both the arteriovenous cross sign and hard exudates are the independent risk factors for CMBs.

Signal transducer and activator of transcription 3 (STAT3) is an important regulatory factor of cell proliferation and metastasis, involved in the occurrence and development of a variety of malignant tumors, and it is one of the hot spots in the research of targeted anti-tumor drugs. Our group screened a novel benzobis (imidazole) structure small molecule compound LZJ541 through the screening model of Janus kinase (JAK)/STAT3 pathway inhibitors, which has definite STAT3 inhibitory activity. We examined the effect of LZJ541 on the proliferation of HepG2 and PC-3 cells by MTT assay in vitro, detected the effect of LZJ541 on the expression of STAT3-related proteins in HepG2 cells by Western blot, and measured the effect of LZJ541 on the apoptosis and cell cycle arrest of HepG2 cells via flow cytometry. The results indicated that LZJ541 significantly inhibited the activation of STAT3 signaling pathway and restrained the proliferation of HepG2 cells. Its half maximal inhibitory concentration (IC₅₀) was 13.8 μmol·L^-1, which was much lower than that of PC-3 cells (with low STAT3 expression, IC₅₀: 41.99 μmol·L^-1), LZJ541 can also inhibit the phosphorylation of STAT3 in HepG2 cells, thereby inducing apoptosis and cycle arrest and then exerting anti-tumor effects. In conclusion, LZJ541 has a certain anti-tumor effect in vitro, which provides an experimental basis for the development of new STAT3-targeted anti-tumor drugs around this kind of compounds.