Objective To explore the relationship of pregnancy-associated plasma protein-A (PAPPA),osteoprotegerin (OPG) and endometriosis,so as to apply the new theoretical basis for the etiology of endometriosis.Method PAPP-A and OPG in peritoneal fluid were measured in 25 women with endometriosis(study group) and 25 women with hysteromyoma ablation (control group).Results The levels of PAPP-A and OPG were both higher in peritoneal fluid in study group [(72.3±57.4)U/L and (3.28±2.63) μ g/L]than that in control group [(42.3± 19.7) U/L and (1.73 ±0.45) μ g/L] (P＜0.05).Furthermore,significant correlation was found between the stage of endometriosis and the levels of PAPP-A and OPG in study group (P＜0.05).The concentration of PAPP-A in peritoneal fluid were significantly higher in the secretory phase than the proliferative phase of the menstrual cycle in two groups(P＜0.05) ,and OPG in peritoneal fluid without significant difference(P＞ 0.05).Conclusion PAPP-A and OPG maybe play an important role in the development of endometriosis.

Objective To summarize the clinical experience of laparoscopic repair of esophageal hiatal hernia.Methods A total of 15 cases of esophageal hiatal hernia underwent laparoscopic hernia repair and fundoplication from May 2004 to April 2005 in this division.There were 4 cases of type Ⅰ hernia(all of which presented severe gastroesophageal reflux disease),10 cases of type Ⅱ hernia,and 1 case of type Ⅲ.Surgical procedures included laparoscopic Nissen total fundoplication in 9 cases,Toupet partial fundoplicatin in 4 cases,and Dor partial fundoplication in 2.Symptoms of gastroesophageal reflux disease,including heart burn,dysphagia,regurgitation,chest pain,and belching,were evaluated by using the Visual Analogue Scales(VAS) at preoperative period,1 postoperative month,and 6 postoperative months,respectively.Results No conversion to open surgery was required in this study.The operative time ranged 100~187 min(mean,125 min).The postoperative hospital stay was 2~5 days(mean,2.8 days).All the patients were followed for 1~12 months(mean,8.5 months).No hernia recurrence was found.The VAS scores decreased from 5.0?3.9 preoperatively to 0.9?1.3 at 1 month postoperatively(t=3.823,P

Objective To investigate the effects of vascular endothelial growth factor-C(VEGF-C)and VEGF-R3(fms-like tyrosine kinase-4,Flt-4)on lymphangiogenesis in adenocarcinoma of rectum.Methods A series of 32 adenocarcinoma of rectum were detected for the expression of VEGF-C and VEGF-R3(fms-like tyrosine kinase-4,Flt-4)and Podoplanin by immunohistochemical SABC methods.Results The density of lymphatic vessel in the perimeter of the adenocarcinoma tissue of rectum was much higher than in the interior(P

Objective To observe the effects of Shenqi Mixture on sLOX‐1 ,SOD ,MDA ,NO ,ET and lipid level among the patients with different types of hyperlipidemia and to investigate the mechanism of blood vessel protection .Methods Sixty‐four patients with hyperlipidemia were divided into high TC group (20 cases) ,high TG group(12 cases) ,mixed type hyperlipidemia group(23 cases) and low HDL group(9 cases) .Every patients were treated with Shenqi Mixture 10 g/d ,treatment course was 6 weeks .Other 25 healthy people of normal blood lipid were selected as the control group .The levels of sLOX‐1 ,SOD ,MDA ,NO ,ET and blood lipid were detected before and after treatment .Results The levels of sLOX‐1 was increased by high TC and mixed type of hyperlipidemia(P<0 .01) .There was a positive correlation between sLOX‐1 with TC and LDL‐C(r=0 .616 ,P<0 .05 ,r=0 .537 , P<0 .05);each type of hyperlipidemia could decrease the level of SOD and NO (P<0 .01) and increased the level of MDA and ET (P<0 .01) .But the effect of SOD ,NO ,ET and MDA on types of hyperlipidemia had difference .Shenqi Mixture decreases the ex‐pression of sLOX‐1 ,regulates the balance of lipid oxidation and peroxidation level TC ,LDL‐C ,MDA and ET (P< 0 .01) and in‐creased the levels of SOD ,NO and HDL‐C(P<0 .01) ,but had no effect on TG(P>0 .05) .Conclusion Shenqi Mixture has good effects on blood vessel protection and protects the vascular endothelial cells ,thus plays the protective role on blood vessel .

Objective To explore differences in phototest and photopatch test results, and in skin color?related parameters between healthy subjects and patients with chronic actinic dermatitis (CAD), and to examine their relationship with the melanocortin?1 receptor gene(MC1R)Arg163Gln variant. Methods Phototests were performed by using a sun simulator SUN1000, and skin color was analyzed by using Hexameter MX18 in 25 patients with CAD and 25 healthy subjects. The MC1R genotype at position?163 was determined by PCR. Photopatch tests were performed on 25 patients with CAD and 5 healthy subjects using a standard series of photoallergens(RuiMin)and an ultraviolet (UV)phototherapy equipment, SS?03A. Results Regarding phototest results, both UVA?minimal persistent pigment darkening dose(MPPD)and UVB?minimal erythema dose(MED)were significantly lower in CAD patients compared with healthy controls (both P < 0.05), with the reduction in UVB?MED being particularly notable. Sixteen patients (64%)in the CAD group had positive photopatch reactions, including 13(52%)cases of photoallergy. Skin color?related parameters were measured at four sites. Skin hemoglobin levels on the cheek, forehead, back of hands, inner upper arms were all significantly higher in CAD patients than in healthy controls(all P<0.05). However, skin melanin levels on the cheek, forehead and inner upper arms were similar between the two groups, and only those on the back of hands were significantly higher in CAD patients than in controls(P<0.01). Skin melanin and hemoglobin levels were significantly higher in exposed than in unexposed (inner upper arms) areas in CAD patients (all P < 0.05). The frequency of the CGA genotype at position?163 in the MC1R gene was similar between CAD patients and controls(P>0.05), but that of the CAA genotype differed significantly between the two groups(P<0.01). UVA?MPPD and UVB?MED were both significantly lower in CAD patients with the CAA genotype at position?163 in the MC1R gene than in those without the genotype(P=0.055, 0.325, respectively). Conclusions Skin photobiological testing plays a critical role in the diagnosis of CAD. Further studies are needed to clarify the role of the CAA genotype at position?163 in the MC1R gene in the diagnosis, prevention and treatment of CAD.

Objective:To investigate the effect of fibrinogenase combined with aspirin on blood viscosity and clinical efficacy in patients with acute cerebral infarction.Methods:Senventy patients with mild to moderate acute cerebral infarction from October 2016 to June 2020 were collected from the Third People′s Hospital of Dalian. Patients were divided into control group and treatment group according to the random number table method, with 35 cases in each group. The control group was given oral aspirin plus an intravenous drip of normal saline equal to the treatment group, while the treatment group was given aspirin plus fibrinogenase by intravenous drip. Both groups were given symptomatic treatment such as management of blood glucose, blood pressure, arteriosclerosis plaque stabilization and improvement of circulation for 10 d. Blood viscosity and neurological deficit score were measured before and after treatment.Results:Compared with baseline values, WBV showed a slight decrease in all shear rates in the control group after treatment compared with that before treatment, but the difference was not statistically significant ( P>0.05). In the treatment group, all shear rates decreased compared with that before treatment ( P<0.05), and the effect of WBV was significant compared with that of the control group ( P<0.05). The improvement of neurological function in the treatment group was better than that in the control group. The significant efficiency and the total effective rate in the treatment group were significantly higher than those in the control group: 34.3% (12/35) vs. 25.7% (9/35), 88.6% (31/35) vs.71.4% (25/35). Conclusions:Fibrinogenase combined with aspirin in the treatment of acute cerebral infarction patients can safely and effectively reduce blood viscosity and improve clinical symptoms.

Objective To elucidate the effect of bioimpedance ratio in the calf (calf-RBI) for volume evaluation on hypertension in hemodialysis (HD) patients. Methods Bioimpedance in the right calf was measured by bioimpedance spectroscopy (BIS). As an index of volume status, calf-RBI was calculated as follows: calf-RBI =impedance at 200 kHz / impedance at 5 kHz. The range of age-stratified 1SD from mean calf-RBI in the healthy control was assumed as the target range for the corresponding HD patients. The dry body weight (DBW) was stepwise decreased under the guidance of calf-RBI. The changes of calf-RBI, blood pressure and antihypertensive medications were recorded and correlation analysis among indexes was performed. Results The calf-RBI showed a normal distribution in both healthy subjects and HD patients. The calf-RBI was positively correlated with age, but not with gender or BMI. Forty-two patients with (35.9%) calf-RBI beyond target range were identified in 117 HD patients. The percentage of uncontrolled hypertensive individuals was significantly higher as compared to those with calf-RBI within or below target range (59.5% vs 33.3% and 16.7%, P＜0.01). The percentage of uncontrolled hypertensive individuals and the dose of antihypertensive medications was significant improved after decreasing the DBW in the patients with calf-RBI beyond target range (74.1% vs 33.3%, P＜0.01) and defined daily dose (2.00±2.28 vs 2.49±2.47, P＜0.05 ). Conclusions The age-stratified calf-RBI may be used as a useful index for estimation of volume status, and has a good association with clinical manifestations. Recognition and correction of chronic fluid overload based on age-stratified calf-RBI is helpful in hypertension control for hemodialysis patients.

To obtain active protein of pIL-18 expression in Lactococcus lactis, and to observe its biological activity, the total RNA was extracted as template from peripheral blood mononuclear cells. Porcine interleukin 18 (pIL-18) was amplified by RT-PCR. The resulting fragment was cloned into pAMJ399 L. lactis vector, and then transformed to L. lactis MG1363 cells by electroporation. Expression of pIL-18 protein was detected by SDS-PAGE and Western-blotting. Bioactivity of the product was tested by pig spleen lymphocyte proliferation test and cytopathogenic effect inhibition assay. The result of Western blotting and bioactivity test shows that the molecular weight of pIL-18 protein was 19 kDa. The react line was observed in both supernatant and precipitated of the recombinant bacteria pAMJ399-pIL18/MG1363. The expressed pIL-18 can promote the proliferation of pig spleen lymphocyte, and significantly inhibit virus multiplication. As conclusion, porcine interleukin-18 was successfully expressed in L. lactis, and the product was biologically active.
Animals ; Blotting, Western ; Electrophoresis, Polyacrylamide Gel ; Electroporation ; Genetic Vectors ; Interleukin-18 ; biosynthesis ; Lactococcus lactis ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Swine

The coding sequence for the mature peptide of porcine lactoferrin (Plf) was synthesized according to the codon usage of lactobacillus, to establish optimized porcine lactoferrin Lactobacillus expression system. The gene was ligated into the Xho I/BamH I site of Lactobacillus expression vector pPG612.1 and the recombinant plasmid pPG612.1-plf was transformed individually into Lactobacillus casei ATCC393, Lactobacillus pentosus KLDS1.0413, Lactobacillus plantarum KLDS1.0344 or Lactobacillus paracasei KLDS1.0652 by electroporation. After induction with xylose, expression of the recombinant proteins was detected by Western blotting and confocal laser scanning microscopy. Secretion of recombinant Plf proteins from four recombinant species was determined quantitatively by ELISA. The antibacterial activities of recombinant proteins were measured by agar diffusion method. The result shows that Plf was correctly expressed in four species of recombinant lactobacillus, with molecular weight of about 73 kDa. The expression levels in recombinant Lactobacillus casei, Lactobacillus pentosus, Lactobacillus plantarum, Lactobacillus paracasei were 9.6 μg/mL, 10.8 μg/mL, 12.5 μg/mL and 9.9 μg/mL, respectively. Antimicrobial activity experiment shows that the recombinant proteins were active against E. coli, Staphylococcus aureus, Salmonella typhimurium, Listeria, Pasteurella. The recombinant Plf expressed by recombinant Lactobacillus plantarum showed the best antibacterial activity among all recombinant lactobacillus species. These data represent a basis for the development and application of porcine lactoferrin from recombinant lactobacillus.
Animals ; Anti-Bacterial Agents ; biosynthesis ; Lactobacillus ; metabolism ; Lactoferrin ; biosynthesis ; Recombinant Proteins ; biosynthesis ; Swine

Objective:To develop health-related physical fitness measurement scale and assess its reliability and validity among older adults.Methods:The health-related physical fitness measurement scale was developed through Delphi method and field investigation method.And the authority coefficient, Kendall's coefficient and variation coefficient were analyzed.A multi-stage random sampling technique was adopted to select 410 older adults to investigate the reliability and validity of health-related physical fitness measurement scale with test-retest reliability, Cronbach's α coefficient and Guttman Split-Half coefficient and structural validity by IBM SPSS 20.0 and AMOS 22.0.Results:The health-related physical fitness measurement scale consisted of 3 dimensions (organic function, motor function, physical adaptive capacity) and 15 indexes.The Cronbach's α coefficient was 0.84.The Spearman-Brown correlation coefficient and Guttman Split-Half coefficient were both 0.82.The test-retest reliability between the first measurement and retest after 1 week was 0.84.Three factors were extracted by exploratory factor analysis, which were basically consistent with the theoretical concept of the scale, but the items of the theoretical conception were different from the actual ones.Confirmatory factor analysis based on the theoretical conception showed that all the indexes met the requirements of reference value as well(χ 2/ df=2.38, GFI=0.94, AGFI=0.91, CFI=0.92, TLI=0.91, TFI=0.92, RMSEA=0.06). Conclusion:The health-related physical fitness measurement scale has good reliability and validity in measuring the health fitness level of the elderly population in Guangzhou.