ObjectiveTo evaluate the effect of electromyography biofeedback on motor function in children with spastic hemiplegia. Methods40 children with spastic hemiplegia were divided into control group (n=20) and treatment group (n=20). Both groups received comprehensive rehabilitation treatment. The treatment group received electromyography biofeedback in addition. They were assessed with Gross Motor Functional Measure (GMFM-88) in D and E items before and after treatment. ResultsThe scores of GMFM-88 in both D and E items were significantly different (P<0.01) before and after treatment in both groups, and significantly different between the treatment group and control group (P<0.05) after treatment. ConclusionElectromyography biofeedback can improve the motor capacity in children with spastic hemiplegia.

Objective:To learn about the iodine nutrition status of children aged 8 - 10 and pregnant women in Chongqing.Methods:From March to November 2018, according to the requirements of the "Technical Plan for Iodine Deficiency Disorders Monitoring in Chongqing in 2018", in all 39 counties (districts) of the city, each county (district) was divided into 5 sampling areas according to the orientation of east, west, south, north and middle. One township/street was selected from each area, one primary school was selected from each township/street, and 40 non-boarding students aged 8 - 10 (age balanced, half male and half female) were selected from each primary school. At the same time, 20 pregnant women (balanced in early, middle and late pregnancy) were selected from each township/street. Household edible salt and random urine samples from children and pregnant women were collected to detect the contents of salt iodine and urinary iodine. Children from 13 counties (districts) were selected for thyroid examination, and the goiter rate of children was calculated.Results:Totally 7 973 and 3 927 household edible salt samples from children and pregnant women were tested, respectively. The median salt iodine was 26.20 mg/kg, the coverage rates of iodized salt were 99.07% (7 899/7 973) and 99.57% (3 910/3 927), the consumption rates of qualified iodized salt were 93.72% (7 472/7 973) and 95.03% (3 732/3 927), respectively. Totally 7 973 and 3 927 urine samples from children and pregnant women were tested, respectively. The medians urinary iodine were 228.60 and 186.30 μg/L, respectively. Among the 39 monitored counties (districts), there were no county (district) with iodine deficiency in children, and 4 counties (districts) had iodine deficiency in pregnant women. A total of 2 656 children were examined, and the goiter rate was 1.73% (46/2 656).Conclusions:In 2018, children aged 8 - 10 in Chongqing are generally at the appropriate level of iodine, and the goiter rate conforms to the national standard (< 5%). Pregnant women are generally at the appropriate level of iodine, however, pregnant women in some counties (districts) are at risk of iodine deficiency.

Objective:To observe the multimodal imaging features of retinal diseases associated with COVID-19.Methods:A retrospective case study. Sixteen patients (30 eyes) of retinal diseases associated with COVID-19 admitted to the Ophthalmology Department of the Second People's Hospital of Zhengzhou in December 2022 were included in the study. There were 5 males and 11 females, with the mean age of (26.69±9.88) years; 14 patients were bilateral and 2 patients were unilateral. The time of ocular symptoms after the diagnosis of COVID-19 was (2.63±0.89) days. All patients underwent the examinations of best corrtected visual acuity (BCVA), fundus color photography (FP), infrared fundus photography (IR), optical coherence tomography (OCT). Fluorescein fundus angiography (FFA) was performed in 2 patients (4 eyes). There were 20 eyes with acute macular neuroretinopathy (AMN), including 6 eyes with cotton wool spots; 10 eyes with Purtscher-like retinopathy (PLR). The BCVA of the patients was 0.1-1.0. No obvious abnormality was found in anterior segment examination. The features of FP, IR and OCT were analyzed retrospectively.Results:In 20 eyes of AMN, irregular reddish brown lesions in the central or paracentral area of the macula in 14 eyes; FP showed no obvious abnormality in 6 eyes; IR showed irregular map like low reflection in the central or paracentral area of macular in all eyes; OCT showed hyperreflectivity in outer plexiform layer and outer nuclear layer, hyporeflectivity in the ellipsoid zone and photoreceptor layers in all eyes; no abnormal fluorecence was observed in 2 eyes examined by FFA. In 10 eyes with PLR, cotton wool spots and retinal hemorrhage were observed in the posterior pole and/or peripapillary area, and the peripheral retina was generally normal, Purtscher spot was found in 5 eyes and macular edema in 4 eyes; OCT showed strong reflex signal in neuroepithelial layers, edema in neuroepithelial layers in 6 eyes; in the 2 eyes examined by FFA, fluorescein leakage from the retinal vein wall was observed, the posterior pole and peripapillary area retinal arteriole occlusions showed patchy hypofluorescence, the fluorescence was obscured by retinal hemorrhage below at inferior retina.Conclusions:For AMN associated with COVID-19, IR can show the lesion contour, OCT shows lesions in the outer retina. PLR associated with COVID-19 are usually at the posterior pole and/or peripapillary area in FP, OCT shows neurocortical edema.

This article analyzed the specific path of iron overload affecting EMT "blood countercurrent cell survival/adhesion/invasion/angiogenesis ectopic lesions" from the three aspects of mediating NF-κB and inflammatory reaction, stimulation of abnormal activation of macrophages, and induction of oxidative stress injury; introduced the theoretical connotation of the pathogenesis of "cold coagulation and blood stasis", and briefly described the progress of the pathogenesis of EMT from the perspective of "blood out of menstruation - injury caused by cold pathogenic factors - cold coagulation and blood stasis - long-term accumulation syndrome"; based on the mutual confirmation of "menstruation countercurrent - iron overload microenvironment - cell survival/adhesion/invasion/angiogenesis - ectopic focus" and "blood out of menstruation - cold pathogen injury - cold coagulation and blood stasis - chronic accumulation syndrome", it was believed that starting from iron overload could tap the scientific connotation and microscopic materials of the pathogenesis of "cold coagulation and blood stasis" in EMT, so as to provide new directions and theoretical references for the research of the pathogenesis of EMT and the mechanism of drugs.

Objective:To master the current status and trend of Keshan disease in Chongqing City, and to provide scientific basis for prevention and treatment of Keshan disease in the future.Methods:In 2019, case search was carried out in 9 Keshan disease areas (counties) in Wanzhou District, Fuling District, Changshou District, Liangping District, Dianjiang County, Fengdu County, Zhong County, and Shizhu County of Chongqing City; five Keshan disease areas (counties) including Wanzhou District, Fuling District, Kaizhou District, Dianjiang County, Kaizhou District and Zhong County were selected as the monitoring sites to carry out key monitoring. Questionnaire survey, clinical examination, and electrocardiogram (ECG) were carried out on monitored subjects. The suspected cases of Keshan disease were examined by cardiac ultrasonography or posterior anterior chest X-ray.Results:A total of 25 728 cases were searched in 471 medical institutions, among which 240 suspected cases of Keshan disease were found, and 2 cases of chronic Keshan disease were confirmed. A total of 4 043 permanent residents were monitored in 5 key monitoring sites, and 813 abnormal ECG were detected, with an abnormal rate of 20.11%. Cardiac ultrasonography was performed in 40 cases, of which 19 (47.50%) cases had decreased cardiac function, 16 cases (40.00%) had thickened ventricular septal, and 11 cases (27.50%) had enlarged heart. In 56 cases of chest X-ray examination, mild, moderate and severe enlargement of heart were 9 (16.07%), 5 (8.93%) and 3 (5.36%), respectively. No case of various types of Keshan disease had been found in cardiac ultrasonography and X-ray examations.Conclusions:Chongqing City is in a stable and low incidence of Keshan disease, but some cases of chronic Keshan disease have been detected. We should continue to carry out the disease monitoring in the future.

Objective: To observe and explore the therapeutic efficacy of hyperbaric oxygen (HBO) in the treatment of non-arteritic anterior ischemic optic neuropathy (NAION). Methods: A total of 139 NAION patients were randomly divided into a control group of 72 and a hyperbaric oxygen group of 67. Both groups were given conventional drugs including prednisolone, mecobalamin and compound anisodine, while the hyperbaric oxygen group was additionally provided with hyperbaric oxygen treatment at a pressure of 0.2MPa once a day for 30 days. Each day′s treatment lasted for 110 minutes, including 20 minutes at increasing pressure, 20 minutes decreasing and 60 minutes with the pressure stable at 0.2MPa. Before and after the 30-day treatment, the visual acuity and visual mean sensitivity (MS) of the two groups were observed and compared. Results: There was no significant difference between the control group and the hyperbaric oxygen group in terms of average visual acuity or visual MS before the treatment. Afterward the average visual acuity (4.88±0.25) and visual MS (16.68±1.19) of the hyperbaric oxygen group were significantly higher than before the treatment and significantly better than those of the control group. The total effective rate of the hyperbaric oxygen group was 91%, significantly higher than that of the control group (75%). Conclusions Conventional treatment combined with hyperbaric oxygen therapy can significantly promote the visual acuity and visual MS of NAION patients.

Diabetic nephropathy （DN） is one of the serious and common microvascular complications of diabetes mellitus （DM） and the main cause of end-stage renal disease （ESRD）. Endoplasmic reticulum stress （ERS） is a common stress defense mechanism in eukaryotic cells. In the ERS state， cells activate the unfolded protein response （UPR） to enhance the folding of unfolded proteins and the degradation of misfolded proteins， so as to restore the normal physiological function of the endoplasmic reticulum and avoid cell damage. However， excessive or chronic persistent ERS can induce apoptosis， inflammation， oxidative stress and other pathways to eventually cause cell damage. In recent years， a large number of studies have confirmed that ERS is closely associated with the occurrence and development of DN. In the case of DN， ERS is involved in the damage or protection of podocytes， glomerular mesangial cells， renal tubular epithelial cells， and glomerular endothelial cells. The regulation of ERS has become one of the hotspots in the prevention and treatment of DN and has received extensive attention in the field of traditional Chinese medicine. This paper systematically expounds the role of ERS in the occurrence and development of DN and summarizes the ERS-targeted regulation of DN by traditional Chinese medicine， with a view to providing certain research ideas for the prevention and control of DN with traditional Chinese medicine.

Objective:To evaluate the efficacy and safety of oral anisodine hydrobromide tablets in the treatment of nonarteritic anterior ischemic optic neuropathy (NAION).Methods:A multicenter nonrandomized controlled trial was conducted.A total of 282 acute NAION patients (282 eyes) were recruited from 16 hospitals in China from July 2020 to May 2021.Patients were divided into two groups according to treatment methods, which were control group (124 cases, 124 eyes) receiving regular treatment including citicoline sodium plus Ginkgo biloba leaf liquid extract or Ginkgo biloba leaf extract tablets plus mecobalamin, and experimental group (158 cases, 158 eyes) receiving treatment in control group plus oral anisodine hydrobromide tablets 1 mg, twice daily for 2 to 3 months.Best corrected visual acuity (BCVA), visual field index (VFI), peripapillary retinal nerve fiber layer (pRNFL) and radial peripapillary capillary vessel density (RPC) were assessed at 1, 2, 3, and 6 months after enrollment using the standard decimal visual acuity chart, 750i Humphery visual field analyzer, Cirrus HD-OCT 4000/Cirrus HD-OCT 5000, RTVue-XR optical coherence tomography respectively.The primary outcomes were BCVA and VFI, and the secondary outcomes were pRNFL, RPC, and the side effects during the follow-up.The study adhered to the Declaration of Helsinki.All patients were fully informed about the treatment and purpose of this study and voluntarily signed the informed consent form.The study protocol was approved by Chinese PLA General Hospital (No.S2020-021-01). Results:In all, 242 patients (242 eyes) completed the follow-up of BCVA, and 98 patients (98 eyes) completed the VFI follow-up.In terms of visual function, BCVA and VFI improved significantly over time in the two groups, and BCVA and VFI were better in experimental group than in control group at various follow-up time points (all at P<0.05). In terms of structure, pRNFL gradually decreased in both groups with the extension of treatment, and pRNFL was significanthy thinner in experimental group than in control group at various follow-up time points (all at P<0.05). There was no significant difference in RPC between the two groups at the last follow-up ( P>0.05). There were two cases with side effects and one case was discontinued due to side effects 25 days after enrollment. Conclusions:Oral anisodine hydrobromide can improve visual acuity and visual field in NAION and accelerate the regression of optic disc edema, with good safety.

Accurate and efficient methods for identifying and tracking each animal in a group are needed to study complex behaviors and social interactions. Traditional tracking methods (e.g., marking each animal with dye or surgically implanting microchips) can be invasive and may have an impact on the social behavior being measured. To overcome these shortcomings, video-based methods for tracking unmarked animals, such as fruit flies and zebrafish, have been developed. However, tracking individual mice in a group remains a challenging problem because of their flexible body and complicated interaction patterns. In this study, we report the development of a multi-object tracker for mice that uses the Faster region-based convolutional neural network (R-CNN) deep learning algorithm with geometric transformations in combination with multi-camera/multi-image fusion technology. The system successfully tracked every individual in groups of unmarked mice and was applied to investigate chasing behavior. The proposed system constitutes a step forward in the noninvasive tracking of individual mice engaged in social behavior.
Animals ; Mice ; Deep Learning ; Zebrafish ; Algorithms ; Neural Networks, Computer ; Social Behavior