Recent years have witnessed significant advancements in myopia control research through the application of diffuse optical technology(DOT)spectacle lenses. Myopia has emerged as a global public health challenge, affecting nearly half of the world's population, with childhood and adolescent myopia rates continuing to rise. DOT lenses represent an innovative myopia control intervention based on retinal contrast signal theory. These lenses incorporate micro-light scattering dots distributed across the lens surface to reduce retinal imaging contrast and modulate the influence of visual input on axial elongation, thereby slowing myopia progression. The core mechanism operates through refractive index differences between the lens substrate(1.53)and scattering dots(1.50), which generate optical scattering effects. This design maintains clear vision through a central 5 mm optical zone while effectively reducing contrast signal intensity in the peripheral retina. Large-scale randomized controlled trials, including the CYPRESS study, have demonstrated significant myopia control efficacy in children aged 6-10 years: 12-month follow-up data revealed a 74% reduction in myopia progression and a 50% reduction in axial elongation, with sustained safety and visual quality maintained over 4-year long-term follow-up. However, several aspects of DOT technology remain contentious and require further clinical validation, including its applicability across different age groups, optimal scattering dot density configurations, combined application effects with other myopia control methods, and long-term visual adaptation during extended use. This review systematically examines the theoretical foundations, design characteristics, clinical application progress, and future development directions of DOT technology, providing scientific evidence for clinical myopia prevention and control strategy formulation.

To summarize the nursing experience of a patient with inhalation of nitric acid fumes treated by veno-venous extracorporeal membrane oxygenation combined with continuous renal replacement therapy.The key points of nursing include:to pay close attention to the changes of respiratory function,to strictly implement lung protective ventilation strategy;to timely remove airway secretions to ensure effective respiratory;to prevent and control infection;to optimize fluid management to facilitate tissue perfusion;to prevent thrombosis and reduce the risk of bleeding;prevention and treatment of blood transfusion reaction,the postoperative nursing of complicated with upper gastrointestinal bleeding.After active treatment and careful nursing,the patient was discharged from the hospital in a stable condition.After 6 months of follow-up after discharge,the patient recovered well with no pulmonary complications.

Aim Investigating the effects of exercise during pregnancy on blood pressure and brain ischemia-reperfusion injury in 1-month-old(1M)and 3-month-old(3M)offspring of spontaneously hypertensive rat(SHR).Methods SHR and Wistar Kyoto rats(WKY)were selected,they were paired in a 1∶1 male-to-female ratio within the same strain,and the first day of pregnancy was confirmed by the presence of copulatory plugs and sperm on a vaginal smear.Pregnant rats were randomly divided into pregnancy sedentary group(p-WKY-SED,p-SHR-SED)and pregnancy exercise group(p-WKY-EX,p-SHR-EX).The rats in the exercise group were performed non-weight-bearing swimming for 60 minutes per day,6 days per week,in water 40 cm deep at a temperature of 34～35 ℃,until the 20th day of preg-nancy.The body weight of the pregnant rats,as well as physiological indicators such as fetal weight,body length,and placental efficiency were monitored to reflect the growth and development of the fetus.1M and 3M offspring were selected as research subjects,non-invasive blood pressure was measured in the tail artery,a rat middle cerebral artery occlusion(MCAO)model was prepared by using the thread embolism method,and the area of cerebral infarction was observed 24 hours after reperfusion.Results(1)Compared with p-WKY-SED group,the body weight of p-SHR-SED pregnant rats was significantly decreased(P＜0.01);there was no significant difference in the litter size among all groups of preg-nant rats(P＞0.05).(2)Compared with p-SHR-SED group,exercise during pregnancy can significantly increase the body weight and placental efficiency of both female and male fetal rats in the p-SHR-EX group(P＜0.05),and decrease the weight of the placenta(P＜0.05).(3)Compared with p-WKY-SED group,the body weight of both female and male offspring rats at 1M and 3M was significantly decreased in the p-SHR-SED group,and their blood pressure was significantly increased(P＜0.01);Compared with p-SHR-SED group,exercise during pregnancy had no significant effect on the body weight and blood pressure of 1M offspring in the p-SHR-EX group(P＞0.05),but it could significantly reduce the blood pressure of 3M male offspring in the p-SHR-EX group(P＜0.01);The body weight and blood pressure of 3M male off-spring were significantly higher in p-WKY-SED group and p-SHR-SED group than those of female in the same group(P＜0.01).(4)Compared with p-WKY-SED group,the infarct area of MCAO injury in both female and male offspring rats at 1M and 3M was significantly increased in the p-SHR-SED group(P＜0.01);Compared with p-SHR-SED group,exercise during pregnancy can significantly reduce the infarct area of MCAO injury in both female and male offspring at 1M and 3M in the p-SHR-EX group(P＜0.05).Conclusion Aerobic exercise during pregnancy can significantly improve blood pressure in the offspring of hypertensive rats,and reduce their susceptibility to ischemic reperfusion injury in the brain as adults.

Aim Investigating the effects of exercise during pregnancy on blood pressure and brain ischemia-reperfusion injury in 1-month-old(1M)and 3-month-old(3M)offspring of spontaneously hypertensive rat(SHR).Methods SHR and Wistar Kyoto rats(WKY)were selected,they were paired in a 1∶1 male-to-female ratio within the same strain,and the first day of pregnancy was confirmed by the presence of copulatory plugs and sperm on a vaginal smear.Pregnant rats were randomly divided into pregnancy sedentary group(p-WKY-SED,p-SHR-SED)and pregnancy exercise group(p-WKY-EX,p-SHR-EX).The rats in the exercise group were performed non-weight-bearing swimming for 60 minutes per day,6 days per week,in water 40 cm deep at a temperature of 34～35 ℃,until the 20th day of preg-nancy.The body weight of the pregnant rats,as well as physiological indicators such as fetal weight,body length,and placental efficiency were monitored to reflect the growth and development of the fetus.1M and 3M offspring were selected as research subjects,non-invasive blood pressure was measured in the tail artery,a rat middle cerebral artery occlusion(MCAO)model was prepared by using the thread embolism method,and the area of cerebral infarction was observed 24 hours after reperfusion.Results(1)Compared with p-WKY-SED group,the body weight of p-SHR-SED pregnant rats was significantly decreased(P＜0.01);there was no significant difference in the litter size among all groups of preg-nant rats(P＞0.05).(2)Compared with p-SHR-SED group,exercise during pregnancy can significantly increase the body weight and placental efficiency of both female and male fetal rats in the p-SHR-EX group(P＜0.05),and decrease the weight of the placenta(P＜0.05).(3)Compared with p-WKY-SED group,the body weight of both female and male offspring rats at 1M and 3M was significantly decreased in the p-SHR-SED group,and their blood pressure was significantly increased(P＜0.01);Compared with p-SHR-SED group,exercise during pregnancy had no significant effect on the body weight and blood pressure of 1M offspring in the p-SHR-EX group(P＞0.05),but it could significantly reduce the blood pressure of 3M male offspring in the p-SHR-EX group(P＜0.01);The body weight and blood pressure of 3M male off-spring were significantly higher in p-WKY-SED group and p-SHR-SED group than those of female in the same group(P＜0.01).(4)Compared with p-WKY-SED group,the infarct area of MCAO injury in both female and male offspring rats at 1M and 3M was significantly increased in the p-SHR-SED group(P＜0.01);Compared with p-SHR-SED group,exercise during pregnancy can significantly reduce the infarct area of MCAO injury in both female and male offspring at 1M and 3M in the p-SHR-EX group(P＜0.05).Conclusion Aerobic exercise during pregnancy can significantly improve blood pressure in the offspring of hypertensive rats,and reduce their susceptibility to ischemic reperfusion injury in the brain as adults.

Objective: To investigate the effect of macrophage migration inhibitory factor (MIF) on the biology of glioma U87MG and U251 cells. Methods: Silencing MIF gene expression in U87MG cells by RNA interference was monitored by Western blot. MIF low expressing U251 cells were treated at different concentrations of recombinant human MIF (rhMIF) and scratching test and flow cytometry were used to detect cell migration and apoptosis. The protein expression of bcl-2, bax, AKT, p-AKT was detected by Western blot. Results: The ability of migration and anti-apoptosis of U87MG cells silenced by siRNA decreased significantly, and the expression levels of p-AKT and anti-apoptotic protein bcl-2 also decreased; in contrast, the expression level of apoptosis protein bax increased. With increase of rhMIF treatment concentration, the expression levels of MIF protein, p-AKT and bcl-2 in U251 cells were gradually enhanced, whereas the level of apoptosis protein bax was inhibited. Conclusion MIF promotes cell migration and inhibits apoptosis of both U87MG and U251 cells, likely through the regulation of PI3K/AKT signaling pathway.

BACKGROUND:With the development and improvement of liver transplantation technology, patients waiting for or undergoing liver transplantation have continued to increase in number. Due to their fears and concerns about post-transplantation rehabilitation, patients are under physical and mental stress, most of whom are shown to have a variety of mental disorders that affect rehabilitation. At present, mental problems of liver transplant patients are more concentrated in post-transplantation research, while patients waiting for liver transplantation do not get enough mental assessment and intervention.
OBJECTIVE:To investigate the suitable mode of cognitive-behavioral therapy for liver transplant recipients waiting for donor liver and to evaluate the effect to improve patient’s physical and mental state.
METHODS:Twelve liver transplant patients who underwent pre-transplantation assessment were randomly divided into experimental group and control group, each group with six cases. The control group received conventional treatment. The experimental group received cognitive-behavioral therapy in addition to conventional treatment. Self-rating anxiety scale (SAS) and vital signs were measured in the two groups on admission, 1 week and 3 weeks after admission.
RESULTS AND CONCLUSION:The SAS score of the experimental group was lower than that of the control group at 1 and 3 weeks after admission, and SAS score decreased as the intervention extended. The systolic blood pressure of the experimental group was lower than that of the control group at 3 weeks after admission, but there was no significant difference in diastolic blood pressure between two groups. The heart rate of the experimental group was lower than that of the control group at 1 and 3 weeks after admission. The respiratory rate of the experimental group was lower than that of the control group at 3 weeks after admission. Cognitive-behavioral therapy can reduce the level of anxiety and keep vital signs stable with good feasibility and effectiveness in patients waiting for liver transplantation.

Objective To investigate the diagnostic value of ADC for breast lesions with different enhancement shape or mass size. Methods One hundred and thirty-six breast lesions confirmed by histopathology were included in this study. According to enhancement shape and size of the lesion, all lesions were divided into 3 groups: non-masslike enhancement ( G1 ), masslike enhancement with the largest diameter ＜ 2. 0 cm (G2a) and masslike enhancement with the largest diameter ＞ 2. 0 cm (G2b). Echo planar imaging DWI was performed and three b-values (0,500 and 1000 s/mm2) were applied. The t-test was used for testing the difference of ADC between malignant and non-malignant breast lesions in each group. ROC curve was deduced to test the diagnostic efficiency of ADC. The sensitivity, specificity, negative predictive value( NPV), positive predictive value(PPV) and accuracy of ADC for the diagnosis of breast lesions were calculated under the different threshold. Appropriate b value and threshold were determined with the combination of morphologic evaluation. Results There were no significant differences for the mean ADC values between malignant [b =800 mm2/s: ADC value = ( 1.13 ±0. 23) × 10-3 mm2/s,b=1000 mm2/s: ADC value = (1.05 ±0.20) × 10-3 mm2/s] and non-malignant breast lesions [b =800 mm2/s: ADC value = ( 1.28 ±0. 27) × 10-3 mm2/s, t = 1. 636, P =0. 112,b = 1000 mm2/s: ADC value=(1.20 ±0.23) × 10-3 mm2/s, t = 1.720, P =0. 109] in Group 1. The mean ADC values of malignant breast lesion [b =800 mm2/s: ADC value = (1.07 ±0. 15) × 10-3 mm2/s,b = 1000 mm2/s:ADC value = (0. 99 ±0. 14) × 10-3 mm2/s] were significantly lower than that of non-malignant lesion [b =800 mm2/s: ADC value = ( 1.37 ± 0. 37 ) × 10-3 mm2/s, t = 4. 803, P = 0. 000; b = 1000 mm2/s: ADC value= (1.30 ±0.34) × 10-3 mm2/s, t =4.227, P =0.000] in Group 2a. The mean ADC values of malignant breast lesion [b =800 mm2/s: ADC value = (0. 97 ±0. 14) × 10-3 mm2/s; b = 1000 mm2/s:ADC value = (0. 93 ±0. 14) × 10-3 mm2/s] were significantly lower than that of non-malignant lesion [b =800 mm2/s: ADC value = ( 1.40 ± 0. 39) × 10 -3 mm2/s, t = 4. 227, P = 0. 000; b = 1000 mm2/s: ADC value = ( 1.35 ±0. 36) × 10-3 mm2/s, t =4. 329, P =0. 000] in Group 2b. The diagnostic efficiency was equal( x2 =0. 36,P =0. 5460) whenever b value of 800 or 1000 s/mm2 was selected. The highest sensitivity (97.7%) and NPV (97. 1%) were obtained with b value of 1000 s/mm2 and threshold of 1.25 ×10 -3 s/mm2. Conclusion MR DWI is useful for the differential diagnosis of breast lesions with masslike enhancement rather than nonmasslike enhancement.

Objective To evaluate the effects of δ-aminolaevulinic acid-photodynamic therapy (ALA-PDT) in the treatment of primary carcinomas on the facial skin. Methods In the accordance of these tumors' sites and morphology, 14 patients with squamous cell carcinoma (SCC), 38 patients with basal cell carcinoma (BCC) and 5 patients with Bowen disease were given four to eight times of topical ALA followed by PDT. Results Ten (71.4%) SCC cases, 34 (89.5%) BCC cases and all (100%) Bowen disease cases completely recovered after ALA-PDT. The others all obtained signifi-cant improvement after final treatment. Their unaffected tissues around these tumors kept well and no scaring appeared after ALA-PDT. The recurrence rates among the completely-recovered cases were 10.0% (SCC), 11.8% (BCC) and 0% (Bowen disease), respectively, by the end of six-month's follow-up. Conclusions Topical ALA-PDT is an effective new therapeutical method with lower recur-rence rates, fewer side effects, no scar formation and excellent cosmetic results for primary carcinomas localizing on the facial skin.