Formononetin improves cognitive behavior in aging rats with chronic unpredictable mild in hippocampal tissue stress by blocking the NF-κB pathway and inhibiting the release of inflammatory factors / 细胞与分子免疫学杂志

Objective To investigate the effects of formononetin (FMN) on cognitive behavior and inflammation in aging rats with chronic unpredictable mild stress (CUMS). Methods SD rats aged about 70 weeks were divided into healthy control group, CUMS model group, CUMS combined with 10 mg/kg FMN group, CUMS combined with 20 mg/kg FMN group and CUMS combined with 1.8 mg/kg fluoxetine hydrochloride (Flu) group. Except for healthy control group, other groups were stimulated with CUMS and administered drugs for 28 days. Sugar water preference, forced swimming experiment and open field experiment were used to observe the emotional behavior of rats in each group. HE staining was used to observe the pathological injury degree of brain equine area. The contents of 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) were detected by the kit. The apoptosis was tested by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) in the brain tissue. The levels of tumor necrosis factor α (TNF-α), inducible nitric oxide synthase (iNOS) and interleukin 6 (IL-6) in peripheral blood were measured by ELISA. Western blot analysis was used to detect Bcl2, Bcl2 associated X protein (BAX), cleaved caspase-9, cleaved caspase-3, Toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and phosphorylated nuclear factor κB p65 (p-NF-κB p65) in brain tissues. Results Compared with CUMS model group, sugar water consumption, open field activity time, open field travel distance and swimming activity time significantly increased in the CUMS combined with 20 mg/kg FMN group and the CUMS combined with 1.8 mg/kg Flu group. The number of new outarm entry increased significantly, while the number of initial arm entry and other arm entry decreased significantly. The pathological damage of brain equine area was alleviated, and the contents of 5-HT and 5-HIAA were significantly increased. The ratio of BAX/Bcl2 and the expression of cleaved caspase-9 and cleaved caspase-3 protein as well as the number of apoptotic cells were significantly decreased. The contents of TNF-α, iNOS and IL-6 were significantly decreased. The protein levels of TLR4, MyD88 and p-NF-κB p65 were significantly decreased. Conclusion FMN can inhibit the release of inflammatory factors by blocking NF-κB pathway and improve cognitive and behavioral ability of CUMS aged rats.

Efficacy of external physical vibration lithecbole combined with potassium sodium hydrogen citrate in treatment of hydronephrosis-free patients with lower calyceal small calculi / 中华全科医师杂志

A prospective randomized controlled study was conducted in 120 patients with hydronephrosis-free lower calyceal calculi in Jiangshan People′s Hospital from June 2020 to August 2021. Patients were divided into drug group, vibration group and combination group by random number table method with 40 cases in each group. The drug group was treated with potassium hydrogen citrate sodium, the vibration group was treated with external physical vibration lithotripsy (EPVL), and the combination group was treated with EPVL combined with potassium hydrogen citrate sodium. The renal stone discharge rate and complications were observed and compared among three groups 1, 2 and 4 weeks after treatment. The overall discharge rate in 120 patients was 39.2%(47/120). The discharge rate of vibration group and combination group were higher than that of drug group ( P<0.05). There were no significant differences in stone discharge rate at 1 and 2 weeks after treatment between vibration and combination group ( P=0.63 and 0.14), while the calculi discharge rate at 4 weeks after treatment in combination group was higher than that in vibration group ( P=0.03).The overall incidence of complications in 120 patients was 12.5% (15/120), that of drug group, vibration group and combination group was 7.5%(3/40), 15.0%(6/40), and 15.0% (6/40), respectively ( P<0.05). No serious complication occurred, and all patients recovered well after treatment. The results suggest that EPVL can promote the discharge of small calyceal calculi in hydronephrosis-free patients, and potassium hydrogen citrate sodium can further facilities the discharge of renal stone.

Effect of percutaneous coronary intervention on myocardial fibrosis and left ventricular function in elderly patients with coronary heart disease / 中华老年医学杂志

Objective To compare the changes in myocardial fibrosis degree and left ventricular function before versus after percutaneous coronary intervention (PCI) in elderly patients with coronary heart disease (CHD).Methods 121 elderly patients diagnosed as CHD with a single vessel by coronary angiography were enrolled.All patients were treated with PCI guided by thrombolysis in myocardial ischemia (TIMI) grade,symptoms and fractional flow reserve (FFR) comprehensively,and reviewed by coronary angiography after 12 months.The changes in serum concentration of procollagen type Ⅰ (PC I),procollagen type Ⅲ (PC Ⅲ),laminin (LN),hyaluronic acid (HA) and aldosterone (ALD) before versus 3,12 months after PCI were detected by enzyme-linked immunosorbent assay (ELISA).Left ventricular ejection fraction (LVEF),left ventricular enddiastolic diameter (LVEDD),plasma N-terminal pro-B-type brain natriuretic peptide (NT-proBNP) level and 6-minute walk test (6MWD) were assessed before and 3,12 months after PCI.The correlations were analyzed between FFR and serum procollagen type Ⅲ level,between serum PC Ⅲ level and plasma NT-proBNP level,and between serum ALD level and serum levels of PC Ⅰ,PC Ⅲ,LN,HA.Results All patients were treated with PCI successfully.At 12 months after PCI,stenosis with different degree were found in implanted stents or some large vessels in 6 cases by coronary angiography FFR=0.56-0.82).The serum levels of PC Ⅰ,PC Ⅲ,LN,HA,ALD,LVEDD and the plasma levels of NT-pro BNP were lower at 3 months after PCI than at preoperative follow-up (all P＜0.05),but LVEF was higher at 3 months after PCI than at preoperative fellow-up (P＜0.05),and the change trends in above observations were more significantly at 12 months after PCI.Linear correlation analysis showed that there was negative correlation between FFR and PC Ⅲ (r=-0.67,P＜0.01).There were positive correlations between PC Ⅲ and NT-proBNP,between ALD and PCⅠ,PC Ⅲ,LN,HA respectively (r=0.67,0.52,0.55,0.46,0.51,all P＜0.01).Conclusions PCI comprehensively guided by TIMI grade,symptoms and FFR can reduce myocardial fibrosis,improve cardiac function and quality of life in elderly patients with single coronary heart disease.

The minimally invasive surgery for treating recurrent lumbar disc protrusion / 重庆医学

Objective To study the clinical effect of the minimally invasive surgery for treating recurrent lumbar disc protrusion . Methods Thirty operative cases of recurrent lumbar disc protrusion treated with the minimally invasive surgery from July 2009 to July 2013 were retrospectively analyzed for statistically describing the age ,body mass index ,recurrent segment ,operating time ,intr-aoperative bleeding volume and postoperative painless walking time .The recurrence segments were 1 case of L34 ,10 cases of L45 and 19 cases of L5 S1 ;the visual analogue scale (VAS) was adopted to evaluate the operative effect .Results The operating time was 65 min on average (50-100)min;mean intraoperative bleeding volume was 145 mL(100-180)mL ;average length of hospital stay was 13 d (9-16)d;average hospitalization costs were 7 300 Yuan;average postoperative painless walking time was 11 d (7-15)d;post-operative non-manual labor work time was 27 .3 d .The VAS score was reduced from (7 .3 ± 1 .3) before operation to (3 .1 ± 0 .9) after operation and (2 .2 ± 0 .6) at the last follow-up ,which was statistically significant(P<0 .05) .Followed up for 6-33 months , average 16 .5 months .Superior efficacy in 16 cases ,gord in 7 cases ,average in 5 cases ,bad in 2 cases ,the rate of good efficacy was 76% .Conclusion The minimally invasive surgery is one of effective methods to treat postoperative recurrence of lumbar disc pro-trusion .

Induced expression of protein kinase signaling cascade Akt after spinal cord injury in rats / 重庆医学

Objective To examine the expression of protein kinase signaling cascade protein kinase B (Akt)-which plays an im-portant role in a number of key biological functions in cellular processes after spinal cord injury (SCI) in rats ,and its effects on SCI induced motor function defects ,and to provide the molecular mechanism for repairing SCI .Methods SCI was produced by extra-dural contusion using modified Allen′s stall with damage energy .The rats were divided into three groups :sham-operated group (Sham) ,interference group (Int) ,and control group (Con) .Using immunostaining studies ,Western blot analyses and real-time qualitative RT-PCR analyses ,we detected the changes of Akt expression at the protein and mRNA level in spinal cord tissues at 1 , 7 ,and 14 d after surgery ,and evaluated the presence and extent of neurological impairment after SCI by the BBB locomotor rating scale .Results The sham operated groups exhibited low expression of the Akt signaling at the protein and mRNA level ,and the ex-pressions increased following SCI .Compared to the animals in the sham operated groups ,prominently elevated level of Akt signaling was detected in the injured spinal cords of SCI group .LY294002 ,an inhibitor of phosphatidylinositol 3-kinase (PI3K) that initiates Akt phosphorylation ,prominently inhibited the expression of Akt produced by SCI and the spontaneous recovery of motor function after SCI .Conclusion Activated protein kinase signaling cascade Akt might be the important intervention aspects of involving in neuroprotective and repair process after SCI .

Early prediction of breast cancer / 国际肿瘤学杂志

Between 40 to 60, especially after menopause, breast cancer have a higher incidence in women population. CA-153 ( carbohydrate antigen-153 ) is a tumor marker commonly used for monitoring breast cancer in clinic. However, CA-153 appears to have no clinical value for early diagnosis of breast cancer. Gene expression profiling technology becomes hot-spot through which some breast cancer related genes have been found. Moreover, the methods used for diagnosis of breast cancer also has certain shortcomings, and it is still uncertain that breast cancer is likely to be found at the early stage or be predicted in advance.

CD44 and invasion and metastasis of tumors and prognosis of the patients / 中国药理学通报

CD44 is a transmembrane receptor protein, belonging to the family of adhesion molecules, which is involved in cell-cell and cell-matrix interactions by binding with ligands such as hyaluronan. Recently a lot of researches reported that CD44 and its variant isoforms, especially CD44v6, are usually aberrantly expressed in many kinds of tumor cells, which is correlated with the invasion and metastasis of tumors and the prognosis of the patients.