Ultra-sensitive and quantitative analysis of proteins, nucleic acid, virus and other biochemical species are critical technologies for effective dianosis of disease, as well as medical studies. Silicon nanowires field-effect transistor (SiNWs-FET) biosensor is one of the most promising powerful platforms for label-free, real-time, ultra-sensitive detection of analyte. Here, the working principle of SiNWs-FET biosensor and the applications of SiNWs-FET biosensors in medicine were introduced. Moreover, the methods for enhancing the sensitivity of SiNWs-FET biosensor were discussed. Lastly, the prospecting of SiNWs-FET biosensor was presented.
Objective To observe therapeutical effect of recombinant human growth hormone (rhGH) on postoperative obstructive jaundice. Methods Fourtyeight patients were divided into two groups randomly: control group with 30 patients and rhGH group with 18 patients. After operation, subcutaneous injection of rhGH was administered 8 U/d for a week. At the same time, parenteral nutrition was given to both groups until the patients could eat and drink. Biochemistry examination, endotoxin, tumor necrosis factor, sIL-2R and nutritional status were all measured at following states: before operation 1, 7 and 14 days after operation. Results Body weights of rhGH group on the fourth day after operation and that of control group on the seventh day after operation increased, but the increasing tendency of rhGH group was more prominent than the control group. For blood sugar 7 days after operation, the level of rhGH group was higher than that of control group (P＜0.05). The level of serum albumin, transferrin, prealbumin in rhGH group was higher than that of control goup （P＜0.05）. Blood serum total bile acid,total cholesterol, low density lipoprotein,glutamicoxal acetic transaminase, transglutaminase, total bilirubin, endotoxin, tumor necrosis factor and sIL-2R were all decreased compared with control group (P＜0.01). However, no significant difference was observed in renal function and electrolute between the two groups.Conclusion An improvement of nutrition status and immunologic function can be observed in obstructive jaundice patients after the postoperative administration of rhGH.
ObjectiveTo investigate the changes of diamine oxidase(DAO) and endotoxin(ET) during the treatment of systemic inflammatory response syndrome with human growth hormone and the relationship between human growth hormone and intestinal mucosal barrier injury. MethodsOne hundred and fortysix patients with systemic inflammatory response syndrome were randomly divided into operative group and nonoperative group, which were again randomly divided into the study group and control group.Plasma concentration of DAO and ET were determined before the treatment and 1 week after the treatment.ResultsPlasma concentration of DAO and ET in study group decreased after treatment with significant difference (P＜0.05，P＜0.01).ConclusionHuman growth hormone can protect intestinal mucosa barrier.
ObjectiveTo investigate the association of high density lipoprotein cholesterol (HDL-C) and cholesterol ester transfer protein (CETP) TaqIB mutation with non-arteritic anterior ischemic optic neuropathy (NA-AION) in the Shaanxi Han ethnic population. MethodsThe study cohort consisted of 45 individuals that had been diagnosed with NA-AION and 45 healthy controls (matched for age, gender). None of the cases or controls had a history of diabetes, serious cardio-cerebral vascular diseases, liver and kidney dysfunction that might influence plasma lipid levels. Plasma HDL-C was detected by enzyme-linked immunosorbent one-step, through the Toshiba TBA-40FR automatic biochemical analyzer. CETP TaqIB gene polymorphism was determined by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) techniques for analysis. B2B2 genotype was only a fluorescence band with 535 bp; B1B1 genotype was 2 fluorescence bands with 361, 174 bp; B1B2 genotype was 3 fluorescence bands with 535, 361, 174 bp. The relative risk of genotype, HDL-C and disease occurrence was analyzed by logistics regression analysis. ResultsThere have no significant difference between NA-AION patients and controls about plasma total cholesterol level and triglyceride level (t=1.907, 1.877; P > 0.05). The plasma HDL-C levels were significantly lower in NA-AION patients than in controls (t=2.367, P=0.022). Compared with controls, the prevalence of B1B1 genotype and B1 allele was higher (χ2=17.289, P=0.001), the prevalence of B2 allele (χ2=15.648, P=0.000) was lower in NA-AION patients. The lower concentration of HDL-C was risk factor of NA-AION (odds ratio=6.143, 95% confidence interval 1.262-29.895, χ2=27.676;P=0.013). The proportion of B1B1 genotype was significantly higher in NA-AION patients than in controls (odds ratio=2.24, 95% confidence interval 2.427-36.323, χ2=10.526; P=0.001). ConclusionsThe low plasma HDL-C is independent risk factor for NA-AION and is associated with the development of NA-AION in the Shaanxi Han ethnic population. CETP TaqIB mutation is associated with low plasma HDL-C in NA-AION in the Shaanxi Han ethnic population.
ObjectiveTo summarize the research progress of surgical technique and immunosuppressive regimen of abdominal wall vascularized composite allograft transplantation in animals and clinical practice. MethodsThe literature on abdominal wall transplantation at home and abroad in recent years was extensively reviewed and analyzed. ResultsThis review includes animal and clinical studies. In animal studies, partial or total full-thickness abdominal wall transplantation models have been successfully established by researchers. Also, the use of thoracolumbar nerves has been described as an important method for functional reconstruction and prevention of long-term muscle atrophy in allogeneic abdominal wall transplantation. In clinical studies, researchers have utilized four revascularization techniques to perform abdominal wall transplantation, which has a high survival rate and a low incidence of complications. ConclusionAbdominal wall allotransplantation is a critical reconstructive option for the difficulty closure of complex abdominal wall defects. Realizing the recanalization of the nerve in transplanted abdominal wall to the recipient is very important for the functional recovery of the allograft. The developments of similar research are beneficial for the progress of abdominal wall allotransplantation.
目的 探讨结直肠癌术后早期肠内营养的可行性、安全性及临床疗效。方法 将50例结直肠癌术后患者随机分为肠内营养(EN)治疗组和肠外营养(PN)治疗组,均给予营养支持治疗至术后第7 d。 测定手术前、后的淋巴细胞计数(LC)、血清总蛋白(TP)、白蛋白(Alb)、前白蛋白(Pa)、转铁蛋白(Tf)、丙氨酸氨基转移酶(ALT)及总胆红素（TB）指标的变化，同时观察胃肠功能恢复时间。结果 EN组的LC、TP、Alb、Pa、Tf、ALT与PN组差异无统计学意义（P＞0.05），TB低于PN组（t＝2.45，P＜0.05）； EN组胃肠功能恢复时间早于PN组（t＝8.60，P＜0.001）。结论 结直肠癌术后早期营养支持应首选EN。
Objective To investigate the factors influencing the medication adherence among patients with diabetes signing family doctor service contract in Beijing urban areas, and provide the basis for improving the level of medication adherence. Methods A total of 320 patients with diabetes from four community health service centers in Beijing urban areas were selected to answer the questionnaires using convenient sampling from June to September 2015. Univariate analysis and binary logistic regression were used for the influencing factors analysis. Results A total of 320 questionnaires were distributed, and 317 valid questionnaires were recovered, in which the rate of high medication adherence was 54.6%. The results of logistic regression showed that the main impact factors on medication adherence were age [odds ratio (OR)=1.918, P=0.011)], degree of education (OR=2.462, P=0.008), knowledge related to diabetes (OR=1.773, P=0.027), adopting of family doctor service or not (OR=2.521, P=0.029) and social function status (P=0.003). Conclusions The family doctor service team should implement the practice of the family doctor service to ensure that the contracted residents can make full use of the family doctor services; and strengthen the follow-up and interventions for patients less aged or with low degree of education. For those with poor social function, more attention should be paid to their self-health management behavior to improve the level of patients’ compliance. As a result, the levels of blood glucose will be well controlled to reduce possibilities of complications and improve their health status and quality of life.
ObjectiveTo analyze the effect of releasing the lower pulmonary ligament on right residual lung expansion after right upper lobe resection under different body mass index (BMI) levels. MethodsThe clinical data of patients who underwent thoracoscopic right upper lobe resection in the First Affiliated Hospital with Nanjing Medical University from 2021 to 2022 were retrospectively analyzed. Patients were divided into a group A (17 kg/m2＜BMI≤23 kg/m2), a group B (23 kg/m2＜BMI≤29 kg/m2) and a group C (BMI＞29 kg/m2) according to BMI. The presence of residual cavity was judged by chest X-ray at 7-10 days after operation, the degree of compensation change of the right main bronchus angle was measured, and the changes in lung volume were determined by CT three-dimensional reconstruction. ResultsA total of 157 patients who underwent thoracoscopic right upper lobe resection were included, including 71 males and 86 females, with an average age of 59.7±11.2 years. There were 50 patients in the group A, 75 patients in the group B, and 32 patients in the group C. In the group A, compared with those without releasing the lower pulmonary ligament, patients with releasing had a lower incidence of postoperative residual cavity (P=0.016), greater changes in bronchus angle (P<0.001), and smaller changes in lung volume (P<0.001). In the group B and C, there was no significant effect of releasing the lower pulmonary ligament on postoperative residual cavity, bronchus angle, and lung volume changes (P>0.05). ConclusionFor patients with thin and long body shape and low BMI, releasing the lower pulmonary ligament is helpful to promote the expansion of the residual lung after right upper lobe resection and reduce the occurrence of postoperative residual cavity in patients.