Objective: To clone novel gene fragments differentially expressed from diabetic rats supplemented with selenium and detect their expression distribution in various tissues. Method: cDNA fragments from former research project were cloned, sequenced and BLASTn analysed. The RT-PCR of the five novel genes were made using the primers designed according to the sequence of cDNA to observe the expression changes in liver of various groups and their expression distributions in various tissues. Results: Se-2, Se-6, Se-10, Se-14 and Se-18 cDNA were shown to be the novel gene fragments for no matched gene with them in GenBank. The expression levels of four cDNAs, including Se-2, Se-10, Se-14, Se-18, in DM group and DM+Se group were obviously lower than those in NC group. The expression level of DM+Se group was higher than those in DM group (P

Objective: To study the regulation of selenium on gene expression of phospholipase D (PLD) gene in relation to liver metabolism of diabetic (DM) rats. Method: Differential display cDNA fragments were isolated from former research project in diabetic rats which were supplemented orally with 50 g/kg bw d selenium for 60d, and were cloned, sequenced, and the homology was analyzed. RT-PCR was made using the primers designed according to the sequences of cDNA fragments. Results: In differential display cDNA fragment, Se-4 and PLD were homologous with sequence identities of 100%.The expression levels of PLD mRNA in DM group and DM+Se group was higher obviously than that of NC group(P

Objective:To compare the efficacy of reduction and in situ intervertebral fusion fixation in the treatment of degenerative lumbar spondylolisthesis.Methods:A total of 182 patients (92 males and 90 females) with L 4 degenerative lumbar spondylolisthesis of Meyerding's classification of grade I and grade II, aged (62.6±6.8) years (range, 57-73 years), who underwent posterior L 4, 5 internal fixation and interbody fusion in the Department of Spinal Surgery, the Second Hospital of Shanxi Medical University, were retrospectively analyzed from January 2019 to December 2022. There were 105 cases of I-degree spondylolisthesis and 77 cases of II-degree spondylolisthesis. According to the operation method, the patients were divided into reduction intervertebral fusion fixation (reduction group) and in situ intervertebral fusion fixation group (in situ group). Imaging parameters such as lumber lordosis (LL), pelvic incidence (PI)-LL, L 3, 4 intervertebral space heights, fusion segment angle, and sagittal vertical axis (SVA) were measured on the pre- and post-surgical lumbar spine lateral radiographs. The visual analogue scale (VAS) and Oswestry Disability Index (ODI) of low back pain were recorded before and after surgery. The differences in clinical and imaging parameters were compared between reduction and in situ fusion group. Results:All 182 patients successfully completed the surgery and were followed up for 12.0±2.4 months (range, 9-15 months). The LL of the reduction group before surgery, immediately after surgery, and at the last follow-up were 46.9°±7.1°, 57.2°±5.9°, 55.6°±5.5°, respectively, with statistically significant differences ( F=87.61, P<0.001), with immediate and final follow-up being smaller than those in the in situ fixation group. The LL of the in situ fixation group before surgery, immediately after surgery, and at the last follow-up were 47.8°±7.2°, 50.5°±7.0°, and 48.7°± 6.4°, respectively, with no statistically significant difference ( F=2.83, P=0.062). The immediate and final follow-up of LL in the reduction group was lower than those in the in situ fixation group ( P<0.05). The fusion segment angles of the reduction group before surgery, immediately after surgery, and at the last follow-up were 14.2°±5.1°, 23.2°±4.7°, 23.2°±4.7°, respectively, with statistically significant differences ( F=152.87, P<0.001), with immediate and final follow-up after surgery being greater than before surgery. The fusion segment angles of the in situ fixation group before surgery, immediately after surgery, and at the last follow-up were 15.4°±5.9°, 18.2°±5.5°, and 17.4°±5.1°, respectively, with statistically significant differences ( F=4.69, P=0.009), with immediate and final follow-up being greater than before surgery. The fusion segment angulation in the reduction group was greater than that in the in situ fixation group at both the immediate and final follow-up ( P<0.05). The SVA of the reduction group before surgery, immediately after surgery, and at the last follow-up were 16.9±18.2 mm, 9.5±12.0 mm, and 8.7±11.3 mm, respectively, with statistically significant differences ( F=11.32, P<0.001), with immediate and final follow-up being smaller than before surgery. The SVA of immediately after surgery and at the last follow-up were both smaller than before surgery. The SVA of the in situ fixation group before surgery, immediately after surgery, and at the last follow-up were 16.4±17.2 mm, 14.3±15.5 mm, and 13.8±15.0 mm, respectively, with no statistically significant difference ( F=0.57, P=0.576). The SVA of the reduction group at immediate and final follow-up was lower than that of the in situ fixation group ( P<0.05). Conclusion:Both reduction and in situ intervertebral fusion fixation can effectively relieve the clinical symptoms of patients. Fusion fixation after reduction can improve the angulation of fusion segments to form segmental kyphosis, which is more conducive to improving SVA.

Objective:To investigate the standardized training needs of new nurses in Yunnan province and provide scientific basis for the formulation of standardized training programs for new nurses.Methods:From December 2019 to September 2020, nurses from all 5 provincial tertiary Class A hospitals in Yunnan Province were selected as the research objects. A questionnaire survey was conducted among 712 nurses selected by the convenience sampling method, among which 456 were new nurses and 256 were senior nurses. The questionnaire was designed by the research team based on the Training Outline for Newly Recruited Nurses, which mainly included three dimensions of knowledge, skills and attitude.Results:The total score of new nurses and senior nurses on standardized training requirements for new nurses were (575.32 ± 85.76) points and (583.16 ± 86.32) points, which were above the average level. There was no statistically significant difference between the scores of training theme needs of new nurses and those of senior nurses ( t value was -1.168, P>0.05). Conclusions:The total score of standardized training needs of new nurses is above the average level, and the demand for knowledge dimension in standardized training of new nurses is the strongest. It is suggested to develop a systematic and scientific standardized training plan for new nurses according to the training needs and training methods.

In aging society the development of non-invasive continuously blood pressure monitors which are suitable for homes, communities and nursing homes has a wide range of applications. This paper proposes a non-invasive continuously blood pressure monitoring based on wearable device which uses MSP430F5529 as the central processor. The design is divided into signal acquisition module, central control module, display module, power supply module and host computer module. The experimental results showed that DBP (375/390, 96.15%) and SBP estimation values (377/390, 96.67%) are in 95% confidence interval, which means our design passes Bland-Altman test with high accuracy and stability.
Blood Pressure ; Blood Pressure Determination ; Blood Pressure Monitors ; Electric Power Supplies ; Wearable Electronic Devices

In robot-assisted eye surgery, such as retinal vascular bypass surgery, precise positioning of operating points is required. In this study, a binocular vision-based 3D reconstruction method is proposed to locate the incision points on retinal vessels. Vessels in the image were extracted by CLAHE algorithm to remove the influence of background, then stereo matching was performed. Finally, the retinal vessel image was reconstructed by using the principle of parallax in binocular vision. Experimental results show that this method can accurately locate the incision points on retinal vessels and meet the requirements of ophthalmic surgery.
Algorithms ; Humans ; Imaging, Three-Dimensional ; Ophthalmologic Surgical Procedures ; Retinal Vessels/diagnostic imaging* ; Robotic Surgical Procedures ; Vision, Binocular