A study on the effect evaluation of virtual reality on workplace employees' emotional optimization / 中华劳动卫生职业病杂志

Objective: To explore the effect of emotional optimization of workplace employees in immersive virtual natural environment. Methods: In July 2020, 15 subjects were selected to complete two groups of treadmill walking training experiments in virtual natural environment and daily environment respectively. At the same time, the subjects' skin electrical (EDA) , pulse frequency (Pf) , respiratory frequency (Rf) physiological data and Self-Assessment Manikin (SAM) data before and after walking were collected; the mean value of three dimensions of SAM and the emotion difference before and after the experiment were calculated. The differences of physiological indexes and subjective mood changes of subjects were tested by paired sample t-test. Results: Compared with the daily environment, the ΔEDA, ΔPf and ΔRf of the subjects in the virtual natural environment were all decreased , and the differences were statistically significant (P<0.05). There were statistically significant differences in pleasure and arousal between subjects before and after using the virtual natural environment (P <0.05). Compared with the daily environment, the Δpleasure degree of subjects using the virtual natural environment increased, and the Δarousal degree and Δdominance degree decreased, and the differences were statistically significant (P <0.05). Conclusion: Walking in virtual natural environment can help subjects improve their mood, relax and improve the regulation ability of autonomic nervous system.

Preoperative differential diagnosis of uterine sarcoma and uterine myoma / 中国实用妇科与产科杂志

Uterine sarcoma is a rare uterine malignant tumor characterized by extremely aggressive behavior with a high recurrence rate and poor prognosis. It remains very challenging to distinguish uterine sarcomas from uterine fibroids prior to surgery because of the similar clinical manifestations and the lack of specific imaging features and tumor markers. An integrated analysis algorism including risk factors,symptoms,imaging analysis(pelvic ultrasound and MRI),and endometrial biopsy is helpful for the preoperative differential diagnosis between uterine sarcomas and uterine leiomyomas.

Clinical features and therapeutic response of aplastic anemia patients with or without cytogenetic abnormalities / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To compare clinical features and therapeutic response of patients with aplastic anemia with and without cytogenetic abnormalities.</p><p><b>METHODS</b>Clinical features of 133 patients with successful chromosomal analysis were retrospectively studied, and therapeutic response between patients with and without cytogenetic abnormalities was compared.</p><p><b>RESULTS</b>Cytogenetic abnormalities were found in 9 patients, which included trisomy 8 (4 cases), monosomy 7 (2 cases) and Xq- (1 case), 1q- (1 case) and 7q- (1 case). No significant difference was detected between patients with or without cytogenetic abnormalities in terms of age (50 vs. 58, P=0.337), sex ratio (male 55.56% vs. 62.10%, female 44.44% vs. 37.90%, P=0.762), or episode of acute aplastic anemia (44.44% vs. 37.10%, P=0.728). Patients with cytogenetic abnormalities had a tendency towards poorer rate of therapeutic response, which was however not significantly different from those without (55.56% vs. 79.03%, P=0.116). All of the 4 patients with +8 responded to treatment, whilst none of those with -7 or 7q- did.</p><p><b>CONCLUSION</b>No significant difference was found between aplastic anemia patients with or without cytogenetic abnormalities in terms of clinical features and therapeutic response. Patients with trisomy 8 seem to have a favorable response towards treatment.</p>