Role of Soluble Factors in Immune and Normal Sera in the Control of Giardiasis Due to Giardia Iamblia

Hyperimmune sera (HIS), raised against crude giardia antigen, on in vitro interaction, caused more agglutination of Giardia lamblia trophozoites. Heat inactivated HIS possessed a comparable agglutinating activity as the non-inactivated controls. Non-inactivated normal (unimmunized) serum caused immobilization of Giardia trophozoite, which was checked on heat inactivation. Antibodies in immune sera are mainly responsible for agglutination, whereas the heat labile non-immune components control the mobility of the intestinal parasite.

Effect of butyl phthalide on serum cytokines, soluble apoptosis factors and antioxidant molecules in patients with vascular dementia

Objective:To study the effect of butyl phthalide on serum cytokines, soluble apoptosis factors and antioxidant molecules in patients with vascular dementia. Methods:86 patients with vascular dementia admitted in our hospital between January 2014 and January 2016 were selected for retrospective study and divided into observation group and control group (n=43) according to double-blind randomized control. Observation group received butyl phthalide capsule (0.2 g/time, 3 times/d) treatment on the basis of conventional treatment, control group received conventional treatment alone, and both lasted for 24 weeks. After 24 weeks of treatment, ELISA was used to determine serum levels of vascular repair factors and soluble apoptosis factors of two groups of patients, and radioimmunoassay was used to determine serum levels of antioxidant molecules. Results:After 24 weeks of treatment, serum vascular repair factors heme oxygenase-1 (HO-1), angiogenin I (AngI) and vascular endothelial growth factor (VEGF) levels of observation group were higher than those of control group, matrix metalloproteinase-9 (MMP-9) level was lower than that of control group, and differences between groups were statistically significant (P<0.05);serum soluble factor-related apoptosis (sFas) and soluble factor-related apoptosis ligand (sFasL) levels were lower than those of control group (P<0.05);serum antioxidant molecules superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), total antioxidant capacity (TAC), catalase (CAT), glutathione S-transferase (GST) and glutathione reductase (GR) levels were higher than those of control group (P<0.05). Conclusions:Butyl phthalide can prompt vascular repair in patients with vascular dementia, and also inhibit apoptosis process and balance the body’s oxidation/antioxidation system function.

Increased serum levels of soluble CD146 and vascular endothelial growth factor receptor 2 in patients with exudative age-related macular degeneration

AIM: To investigate serum levels of soluble CD146(s CD146) and vascular endothelial growth factor receptor 2(VEGFR2) in patients with age-related macular degeneration(AMD). METHODS: Eighty-eight patients with exudative AMD and 45 sex-and age-matched healthy controls were enrolled in this study conducted in China. Serum samples was obtained from the patients with exudative AMD and from the controls. Serum sCD146 and VEGFR2 protein levels were measured using an enzyme-linked immunosorbent assay.RESULTS: We found that serum sCD146 and VEGFR2 protein levels were significantly higher in the patients with exudative AMD group than in the controls(t=3.859, P<0.001 and t=3.829, P<0.001, respectively). Serum sCD146 levels were significantly higher in patients with classic choroidal neovascularization(CNV) than in those with occult CNV(t=9.899, P<0.001). There was a significant difference in the trend for exudative AMD in the highest versus lowest quartile of circulating sCD146 levels(χ2=10.29, P=0.001). The receiver operating characteristic curve analysis showed that the area under the curve was 0.696 for s CD146(95%CI: 0.601-0.791) with an optimum diagnostic cut-off value of 157.16 ng/mL, a sensitivity of 55.7%, and a specificity of 82.2%.CONCLUSION: The serum sCD146 level increases and may be a biomarker for exudative AMD.

ELEVATED SOLUBLE EPIDERMAL GROWTH FACTOR RECEPTOR LEVEL IN PITUITARY ADENOMA AND CARCINOMA

To investigate effect of the soluble epidermal growth factor receptor (sEGFR/sErbB1) level in the periph-eral blood in development, invasiveness, apoplexy of each type of pituitary tumor. Methods The sEGFR level was determined in peripheral serum from 190 patients with pituitary diseases by enzyme linked immunosobent assay. The sEGFR levels were measured in 10 pituitary Rathke’s pouch, 18 pituitary hyperplasia, 161 pituitary adenomas including 30 microadenomas, 83 large adenomas, 48 giant adenomas, 1 pituitary carcinoma, and 28 hea-lthy controls. Results In the patients with pituitary hyperplasia, microadenoma, large adenoma, giant adenoma, and pituitary carci-noma, the sEGFR level was 188.92 ± 32.62, 209.83 ± 19.01, 333.20 ± 69.33, 405.85 ± 37.38, and 617.45 fmol/mL indepen-dently. They were all significantly higher than patients with pituitary Rathke’s pouch (156.78 ± 18.24 fmol/mL, P < 0.001) and healthy control group (159.11 ± 40.50 fmol/mL, P < 0.05). The sEGFR level in pituitary carcinoma was higher than pi-tuitary adenoma. In patients with pituitary adenoma, the sEGFR level was positive correlated to the size of pituitary adeno-mas (r = 0.998), the significant difference was observed for the sEGFR level in each group of the patients with pituitary adenomas (P < 0.001). Furthermore, in patients with pituitary ACTH-secreting microadenomas, the serum sEGFR levels in invasiveness (295.00 ± 77.80 fmol/mL) was higher than that in non-invasiveness (210.60 ± 16.4 fmol/mL, P < 0.05). In pati-ents with pituitary ACTH-secreting, PRL-secreting, GH-secreting, and non-functioning large adenomas, the serum sEGFR levels in invasiveness (407.86 ± 28.50, 399.25 ± 30.10, 386.00 ± 13.08, and 369.25 ± 36.70 fmol/mL) was higher than that in non-invasiveness (335.25 ± 63.49, 300.64 ± 47.57, 297.00 ± 61.93, and 269.30 ± 25.68 fmol/mL) respectively (P < 0.05). In patients with invasive pituitary PRL-secreting, GH-secreting, and non-functioning giant adenomas, the serum sEGFR levels not significantly different in between invasiveness (417.50 ± 35.94, 409.50 ± 69.14, and 417.50 ± 44.13 fmol/mL) and non-invasiveness (386.00 ± 49.64, 417.50 ± 44.03, and 409.51 ± 35.17 fmol/mL) (P > 0.05). In patients with pituitary large adeno-mas, the sEGFR levels in pituitary apoplexy (377.48 ± 39.18 fmol/mL) was higher than that in non-pituitary apoplexy (343.18 ± 68.17 fmol/mL, P > 0.05). Conclusions The increased level of peripheral serum sEGFR is concomitant with development, proliferous size of the adenomas in patients with pituitary adenomas. In addition, the elevated levels of serum sEGFR occur in pituitary apoplexy as clinical active tumors, and the non-invasive ACTH secreting adenomas. The sEGFR levels could be differen-tiated helpfully between pituitary adenomas and non-pituitary adenomas. These data suggest that serum sEGFR could be as a referable marker of the size and activation of proliferation in pituitary adenoma.

Increased serum and ascitic fluid levels of soluble tumor necrosis factor-p55 in hepatocellular carcinoma patients

Objective: To explore the levels of serum and ascitic fluid soluble tumor necrosis factor receptor-p55 (sTNFR-p55) and understand their clinical implication in primary hepatocellular carcinoma (HCC) patients. Methods: Enzyme-linked immunosorbent assay (ELISA) was used to examine the levels of sTNFR-p55 in the serum and ascitic fluid in 25 HCC patients and 25 patients with liver cirrhosis (LC). The test was also performed on the serum of 30 healthy subjects who served as control group. To assess the clinical effects of increased serum concentrations of sTNFR-p55, four parameters were analyzed by logistic regression. Results: Serum and ascitic fluid levels of sTNFR-p55 in HCC patients were significantly higher than those in LC patients and controls (P=0. 001). No significant difference was found between serum sTNFR-p55 levels in the latter 2 groups (P = 0. 19), and positive correlation between serum levels of sTNFR-p55 and that in ascitic fluid was noted in the 2 patient groups (r=1. 000, P<0. 001). Levels of the sTNFR-p55 positively correlated with TBIL and AFP in the peripheral blood of HCC patients (r=0. 524, P = 0. 01 and r=0. 234, P = 0. 03, respectively). Conclusion: Increased levels of sTNFRs-p55 in the serum and ascitic fluid could reflect the abnormal immune status of the HCC patients and may help predict the development of the tumor.

Primary focal and segmental glomerulosclerosis and soluble factor urokinase-type plasminogen activator receptor

Primary focal and segmental glomerulosclerosis(FSGS) may be due to genetic or acquired etiologies and is a common cause of nephrotic syndrome with high morbidity that often leads to end-stage renal failure. The different available therapeutic approaches are unsuccessful, in part due to partially deciphered heterogeneous and complex pathophysiological mechanisms. Moreover, the term FSGS, even in its primary form, comprises a histological description shared by a number of different causes with completely different molecular pathways of disease. This review focuses on the latest developments regarding the pathophysiology of primary acquired FSGS caused by soluble factor urokinase type plasminogen activator receptor, a circulating permeability factor involved in proteinuria and edema formation, and describes recent advances with potential success in therapy.

Expression of a fusion protein of human ciliary neurotrophic factor and soluble CNTF-Receptor and identification of its activity

Ciliary neurotrophic factor (CNTF) has pleiotropic actions on many neuronal populations as well as on glia. Signal transduction by CNTF requires that it bind first to CNTF R, permitting the recruitment of gp130 and LIF R, forming a tripartite receptor complex. Cells that only express gp130 and LIF R, but not CNTF R are refractory to stimulation by CNTF. On many target cells CNTF only acts in the presence of its specific agonistic soluble receptors. We engineered a soluble fusion protein by linking the COOH terminus of sCNTF R to the NH 2 terminus of CNTF. Recombinant CNTF/sCNTF R fusion protein (Hyper CNTF) was successfully expressed in COS 7 cells. The apparent molecular mass of the Hyper CNTF protein was estimated from western blots to be 75 kDa. Proliferation assays of transfected BAF/3 cells in response to CNTF and Hyper CNTF were used to verify the activity of the cytokines. The proliferative results confirmed that CNTF required homodimerization of the gp130, CNTF R and LIF R receptor subunit whereas Hyper CNTF required heterodimerization of the gp130 and LIF R receptor subunit. We concluded that the fusion protein Hyper CNTF had superagonistic activity on target cells expressing gp130 and LIF R, but lacking membrane bound CNTF R.

The interleukin-1 receptor antagonist (IL-1-Ra) and soluble tumor necrosis factor receptor I (sTNF RI) in periodontal disease

The course and severity of periodontitis can be significantly affected by bacterial virulence as well as host immunity dysfunction. Periodontal tissue destruction has been proved to result from cascade of cytokines synthesized by reactive cells upon stimulation by pathogenic bacteria and lipopolysaccharides within their cell membranes. The clinical use of genetically programmed cells, producing substances blocking IL-1, based on recombinant IL-1 antagonist, as well as cytokines activating fibroblasts and osteoblasts to regenerate the destroyed periodontal tissue could prove alternative to the conventional treatment. Another cytokine of interest in respect to periodontitis ethiopathogenesis is soluble tumor necrosis factor receptor I (sTNF RI). Observation of soluble TNF receptors as physiologic inhibitors of TNF led to its administration in therapeutic process as well as in therapy selected cases of aggressive periodontitis.

Placenta Growth Factor and Soluble Fms-Like Tyrosine Kinase 1 in Preeclampsia and Normotensive Pregnant Nigerian Women

Background: Preeclampsia (PE) is still one of the leading causes of maternal/perinatal morbidity/mortality in Nigeria. Imbalance between placenta growth factor (PLGF) and soluble fms-like tyrosine kinase 1 (sFlt1) has been reportedly present both before and after the manifestation of PE;however, Nigerian data regarding these angiogenesis-related substances are lacking. We here attempted to determine the maternal serum level of PLGF and sFlt1 and sFlt1/PLGF ratio in PE vs. non-PE women in Lagos State University Teaching Hospital, Nigeria. Methods: An observational cross-sectional study was made on 75 women with PE and 75 age-gestational-age matched women without PE, as case and control, respectively. Levels of sFlt-1, PIGF and the sFlt-1: PIGF ratio was compared between the two. Results: Serum levels of Flt-1 and sFlt1/PIGF ratio were significantly higher in PE patients (6581.86 ± 865.75, and 146.42 ± 92.43) than in the normotensive control (4584.52 ± 1479.6 and 11.60 ± 6.42). PIGF was significantly lower in PE patients (70.14 ± 51.03) than the normotensives (494.06 ± 475.8). There were positive and negative correlations between the sFlt-1 and PLGF respectively and mean arterial blood pressure. Conclusion: Serum sFlt-1, sFlt1/PIGF ratio was significantly higher and PIGF levels were significantly lower in PE than normotensive control in Nigerian population.

Effects of liraglutide on soluble tumor necrosis factor receptor in patients with diabetic nephropathy

Objective:To observe the effects of Liraglutide combined with sequential dialysis on soluble tumor necrosis factor receptor in patients with diabetic nephropathy.Methods: A total of 110 patients with early diabetic nephropathy who had been seeking treatment in the hospital between December 2016 and December 2017 were selected and according to the random number table method, these patients were randomly divided into two groups, with 55 cases in each group. Patients in the control group were given conventional symptomatic treatment such as hypoglycemic therapy, whereas the observation group was treated with Liraglutide based on the conventional symptomatic treatment given to the control group. The renal function, blood glucose metabolism level, serum indexes, vascular endothelial function and adverse drug reactions were compared between the two groups.Results: After treatment, the levels of 24 hUpor, UAER and Scr in the two groups were both shown to be lower than those before treatment, and the levels in the observation group were shown to be lower than those in the control group, with the differences being statistically significant. After treatment, the levels of PBG, FPG, HOMA-IR , HbA1c and FIns in the two groups were both significantly lower than before treatment, and the levels of PBG, FPG, HOMA-IR , HbA1c and FIns in the observation group were shown to be lower than those in the control group, where the differences were statistically significant. After treatment, the levels of TNF-α, sTNFR1 and hs-CRP in the two groups were significantly reduced than before treatment, and the levels in the observation group were shown to be significantly lower than the control group, with statistically significant differences. After treatment, the NO levels in both groups were significantly increased and ET-1 level significantly reduced than before treatment, and the NO level in the observation group was shown to be higher and the ET-1 level lower than the control group, where the difference was statistically significant.Conclusion: Liraglutide is with higher safety for patients with diabetic nephropathy, which can effectively improve their renal function and blood glucose, enhance insulin sensitivity, reduce the levels of inflammatory factors, and improve the endothelial function.

Selective deletion of the soluble Colony-Stimulating Factor 1 isoform in vivo prevents estrogen-deficiency bone loss in mice

Neutralizing CSF1 in vivo completely prevents ovariectomy （OVX）-induced bone loss in mice. There are two isoforms of CSF1, soluble （sCSF1）, and membrane-bound （mCSF1）, but their individual biological functions are unclear. It had been previously reported that mCSF1 knockout （K/O） and wild type （Wt） female mice experience the same degree of bone loss following OVX. In Wt mice the expression of sCSF1 was elevated fourfold in skeletal tissue following OVX while expression of mCSF1 was unchanged. To examine the role of sCSF1 in OVX-induced bone loss, mice were engineered in which sCSF1 was not expressed but expression of mCSF1 was unaffected （sCSF1 K/O）. Isoform-specific reverse transcription PCR confirmed the absence of transcripts for sCSF1 in bone tissue isolated from these animals and no circulating CSF1 was detected by ELISA. Surprisingly, there were no significant differences in bone mineral density （BMD） between sCSF1 K/O mice and Wt controls as assessed by dual-energy X-ray absorptiometry and micro-CT. However, one month after OVX, femoral, spinal and total BMD had declined by 11.2%, 8.9%, and 8.7% respectively in OVX-Wt animals as compared to Sham-OVX. In contrast OVX sCSF1 K/O mice showed changes of ＋0.1%, - 2.4%, and ＋2.3% at the same 3 sites compared to Sham-OVX sCSF1 K/O mice. These data indicate important non-redundant functions for the two isoforms of CSF1 and suggest that sCSF1, but not mCSF1, plays a key role in estrogen-deficiency bone loss.

Effects of hemoperfusion combined with sequential dialysis on soluble tumor necrosis factor receptor in patients with diabetic kidney disease

Objective: To observe the effects of hemoperfusion combined with sequential dialysis on soluble tumor necrosis factor receptor in patients with diabetic kidney disease. Methods:A total of 100 patients with diabetic kidney disease who had been seeking treatment in the hospital between May 2015 and July 2017 were selected, and then according to the random number table method, these patients were divided into a control group and an observation group, with 50 cases in each group. The control group was treated with hemodialysis only, whereas the observation group was given hemoperfusion combined with sequential dialysis for treatment. The changes of soluble tumor necrosis factor receptor, oxidant factor and metabolic indexes after 12 weeks of treatment were compared between the two groups. Results: After treatment, the metabolic indexes in the observation group were shown to be lower than the control group, the levels of soluble tumor necrosis factor receptor related indexes in the former group were lower than the control group, and the level of oxidative stress indicators in the former group was shown to be better than the control group, where the differences were statistically significant. Conclusion: For patients with diabetic kidney disease, hemoperfusion combined with sequential dialysis is with significant clinical curative effects, which can effectively relieve their oxidative stress, better control the blood glucose level, significantly improve their renal function and significantly reduce the level of soluble tumor necrosis factor receptor.

Soluble endoglin和sFlt-1在子痫前期患者血清中的表达

目的探讨可溶性CD105淋巴细胞抗原及可溶性血管内皮生长因子受体1(sFlt-1)在子痫前期患者血清中表达水平的变化及意义。方法采用双抗体夹心酶联免疫吸附(ELISA)法测定子痫前期组、子痫前期各个亚组及正常晚期妊娠组血清sEng及sFlt-1的水平。结果①子痫前期组孕妇血清sEng、sFlt-1水平分别为(5.27±1.05)ng/mL、(391.14±70.25)pg/mL,正常晚期妊娠组分别为(1.26±0.40)ng/mL、(27.57±4.36)pg/mL,两组比较差异有统计学意义(P<0.01);②轻度子痫前期组sEng水平与重度子痫前期组比较差异有统计学意义(P<0.01),两组sFlt-1水平比较差异无统计学意义(P>0.05);③早发型重度子痫前期组sEng水平与晚发型重度子痫前期组比较差异有统计学意义(P<0.01),两组sFlt-1水平比较差异无统计学意义(P>0.05)。结论子痫前期患者血清中sEngs、Flt-1水平显著升高,sEng在早发型重度子痫前期血清中升高更显著,对早期诊断子痫前期有重要意义。

Material and mechanical factors:new strategy in cellular neurogenesis

Since damaged neural circuits are not generally self-recovered, developing methods to stimulate neurogenesis is critically required. Most studies have examined the effects of soluble pharma- cological factors on the cellular neurogenesis. On the other hand, it is now recognized that the other extracellular factors, including material and mechanical cues, also have a strong potential to induce cellular neurogenesis. This article will review recent data on the material （chemical patterning, micro/nano-topography, carbon nanotube, graphene） and mechanical （static cue from substrate stiffness, dynamic cue from stretch and flow shear） stimulations of cellular neuro- genesis. These approaches may provide new neural regenerative medicine protocols. Scaffolding material templates capable of triggering cellular neurogenesis can be explored in the presence of neurogenesis-stimulatory mechanical environments, and also with conventional soluble factors, to enhance axonal growth and neural network formation in neural tissue engineering.

Inquiry of Water-Soluble Polysaccharide Extraction Conditions from Grapefruit Skin

Water-soluble polysaccharide was isolated from grapefruit with the method of water-dissolving and ethanol-precipitating. By single factor test and orthogonal experimental method, the extraction conditions of the water-soluble polysaccharide were investigated, which contained liquid-solid ratio, temperature, time and pH. The results showed that pH was the most important factor of polysaccharide extraction, followed by temperature. The optimized extraction technology conditions were obtained. The liquid-solid ratio was 1:40, temperature was 90?C, time was 2.0 h, and pH was 2. The highest extraction rate of crude polysaccharide was 8.30%.

Correlation of serum sTREM-1 content with inflammatory factors and immune function in neonatal infectious pneumonia

Objective: To investigate the correlation of serum soluble triggering receptors expressed on myeloid cells 1 (sTREM-1) content with inflammatory factors and immune function in neonatal infectious pneumonia. Methods: A total of 62 neonates with infectious pneumonia who were treated in Xiaogan Hospital Affiliated to Wuhan University of Science and Technology between July 2016 and September 2017 were selected as pneumonia group, and 50 healthy neonates who were born in this hospital during the same period were selected as normal control group. The differences in serum levels of sTREM-1, inflammatory factors and immunoglobulins were compared between the two groups. Results: Serum sTREM-1 content of pneumonia group was higher than that of normal control group;serum cytokines IL-10, IL-17, PCT and CRP contents were higher than those of normal control group;serum immunoglobulins IgA, IgG and IgM contents were higher than those of normal control group;serum IL-10, IL-17, PCT, CRP, IgA, IgG and IgG contents of pneumonia group of neonates with high serum sTREM-1 content were higher than those of neonates with low serum sTREM-1 content. Conclusion: Serum sTREM-1 content is higher in neonates with infectious pneumonia, which is directly correlated with the inflammatory response and humoral immune function.

Preparation of Alkali-soluble Pachymaran Rice Wine

[Objectives] This study was conducted to determine the optimum process conditions for the preparation of alkali-soluble pachymaran rice wine. [Methods] A new type of alkali-soluble pachymaran rice wine was prepared by mixing and fermenting alkali-soluble pachymaran and glutinous rice as raw materials. The sensory score was used as the evaluation index to investigate the effects of three factors including the amount of alkali-soluble pachymaran, inoculation amount and fermentation temperature on the quality of the alkali-soluble pachymaran rice wine. The fermentation process of the rice wine was then optimized by an orthogonal experiment. [Results] With the proportion of the alkali-soluble pachymaran added of 0.4%, the inoculation amount of 0.6% and the fermentation temperature at 30 ℃, the sensory score of the prepared rice wine was the highest, which was 93.5 points. The alkali-soluble pachymaran rice wine prepared under above conditions was rich in flavor and tasted sweet and sour. [Conclusions] The production of the new rice wine and the understanding of the development history of rice wine will provide reference for the future development of rice wine industry, and provide research directions for the development of new health drinks.

Targeted Antagonism of Vascular Endothelial Growth Factor Reduces Mortality of Mice with Acute Respiratory Distress Syndrome

Summary:Acute respiratory distress syndrome(ARDS)is associated with a mortality of 45%.Our previous rescarch indicated that anti-vascular endothelial growth factor(VEGF)could maintain the normal structure and function of the respiratory barrier.However,systemic application of VEGF antagonists would lead to animal death.This study attempts to study the targeted drug delivery for ARDS.In this study,we used soluble fims-like tyrosine kinase-1(sFlt)-targeted ultrasound microbubbles to antagonize the effect of VEGF on lung tissue.Ninety male BALB/C mice were randomly assigned to 6 groups:phosphate buffer saline(PBS)group(PBS+PBS);blank group(PBS+empty microbubbles);lipopolysaccharide(LPS)group(LPS+PBS);ARDS group(LPS tempty microbubbles);control group(PBS+sFlt microbubbles);and treatment group(LPS+sFIt microbubbles).After administration of LPS or PBS in the corresponding groups,the sFlt-targeted microbubbles or empty microbubbles were injected into the blood circulation.Then the lungs were irradiated with ultrasound,which ruptured the drug-loaded microbubbles and helped release drugs to the lung tissues targeted.The lung injury score,lung wet/dry ratio(W/D),liver and kidney functions,and the mortality of the mice in all groups were investigated at the predetermined time point.The difference in mortality between groups was examined by Fisher test.Other data were analyzed by onc-way analysis of variance(ANOVA).A value of P<0.05 indicates that the difference was significant.The results showed that the PaO2 levels were normal in the PBS group,the blank group,and the control group.The LPS group and ARDS group showed significant hypoxia.PaO2 was improved significantly in the treatment group.The lung injury score and W/D were normal in the PBS group,the blank group,and the control group.The lung injury score and W/D increased significantly in the LPS group and ARDS group and decreased in the treatment group(P<0.05).The mortality rate of the ARDS model was 60%(95%confidence interval 47.5%-72.5%),and that with sFlt-targeted microbubbles was significantly lower at only 40%(95%confidence interval 27.5%-52.5%,P<0.05).It was concluded that anti-VEGF with sFIt targeted ultrasound microbubbles attenuated the lung injury and ultimately reduced the 7-day mortality effectively.It might be a suitable therapeutic tool for the treatment of ARDS.

Increase of tumor necrosis factor receptor 1 expression in women with unexplained early spontaneous abortion

Objective: To investigate membrane tumor necrosis factor receptor 1 protein expression level in decidua and concentration of soluble tumor necrosis factor receptor 1 in serum in women with unexplained early spontaneous abortion, threatened abortion, and compare the levels with healthy pregnant women. Methods: Thirty-seven women with unexplained early spontaneous abortion, 27 women with threatened abortion, and 34 healthy pregnant women undergoing artificial abortion of pregnancy at 6 - 10 weeks of gestation were selected. Decidual samples were collected when women were undergoing artificial abortion, and blood samples were collected at the same time. The level of membrane tumor necrosis factor receptor 1 in decidua was detected by flow cytometer, and the concentration of soluble tumor necrosis factor receptor 1 in sera was measured with an enzyme-linked immunosorbent assay. Results: The percentages of membrane tumor necrosis factor receptor 1 positive decidual cells were 16.42 ± 7.10 Mean ± SD for women with unexplained early spontaneous abortion and 13. 14 ± 6.30 for healthy pregnant women ( P < 0.05). Serum concentration of soluble tumor necrosis factor receptor 1 was significantly higher in women with unexplained early spontaneous abortion than in healthy pregnant women and in women with threatened abortion, and no difference was found between healthy pregnant women and women with threatened abortion. Conclusion: Women with unexplained early spontaneous abortion present significantly higher expression of tumor necrosis factor receptor 1 than healthy pregnant women, suggesting that over-expression of tumor necrosis factor receptor 1 may contribute to the development of early spontaneous abortion.

首发精神分裂症患者血清sTfR、FGF22水平与临床症状的关系及其诊断价值

目的探讨首发精神分裂症(FES)患者血清可溶性转铁蛋白受体(sTfR)及成纤维细胞生长因子22(FGF22)表达情况,分析二者与FES患者临床症状的关系并进行诊断价值分析。方法选取2021年3月至2023年2月在该院确诊的97例FES患者作为FES组,同期选取来该院体检的96例健康志愿者作为对照组。采用免疫透射比浊法检测sTfR水平,酶联免疫吸附试验(ELISA)检测FGF22水平,Spearman法分析FES患者血清中sTfR及FGF22水平与阳性与阴性病症量表(PANSS)评分及威斯康辛卡片分类测验(WCST)结果的相关性,受试者工作特征(ROC)曲线分析sTfR及FGF22水平对FES的临床诊断价值。结果两组在性别、年龄、体质量指数、受教育年限、饮酒史及吸烟史方面差异均无统计学意义(P>0.05),与对照组比较,FES组血清sTfR及FGF22水平均下降(P<0.05)。sTfR单独诊断FES的曲线下面积(AUC)为0.835,最佳截断值为4.606 mg/L,FGF22单独诊断FES的AUC为0.772,最佳截断值为208.333μg/L,二者联合诊断的AUC(0.921)大于sTfR单独诊断的AUC(Z=2.613,P=0.009)及FGF22单独诊断的AUC(Z=5.140,P<0.001);sTfR高水平组及FGF22高水平组的PANSS阳性症状评分、阴性症状评分、病理症状评分、总评分、WCST持续性错误数、错误应答数分别低于sTfR低水平组及FGF22低水平组(P<0.05),而WCST完成分类数、WCST正确应答数分别高于sTfR低水平组及FGF22低水平组(P<0.05);FES组中sTfR、FGF22水平与PANSS阳性症状评分、阴性症状评分、病理症状评分、总评分、WCST持续性错误数、WCST错误应答数均呈负相关(P<0.05),与WCST完成分类数及WCST正确应答数均呈正相关(P<0.05)。结论FES患者血清sTfR及FGF22水平下降,联合检测sTfR及FGF22水平对于FES的临床诊断具有重要意义。