[Objective] To establish a cryopreservation protocol for small-volume (≤1 mL) red blood cells (RBCs) and to evaluate the reactivity and stability of blood group antigens after cryopreservation, so as to explore its potential application in immunohematology reference laboratories. [Methods] Small-volume RBCs were cryopreserved for 120 days, followed by thawing and deglycerolization to restore the RBC components. The quality of the RBCs was assessed. Serum antibodies were serially diluted and reacted with RBCs before and after cryopreservation, and agglutination scores were recorded to quantitatively evaluate the reactivity and stability of blood group antigens such as Rh, Duffy, Lewis, Kidd, M, and H. Flow cytometry was used to analyze the percentage and mean fluorescence intensity of ABO antigen expression on RBCs before and after cryopreservation to assess the usability of cryopreserved RBCs in flow immunophenotyping and blood group subtype studies. [Results] The hemolysis rate of thawed and deglycerolized RBCs was (0.27±0.10)%, with a supernatant free hemoglobin level of (0.52±0.14) g/L, and the RBC recovery rate was (69.12±7.91)%. The direct antiglobulin test (DAT) was negative for all thawed RBCs. There was no difference in the reactivity of blood group antigens before and after cryopreservation, and no difference in the percentage and mean fluorescence intensity of A and B antigen expression on RBCs before and after cryopreservation. [Conclusion] The small-volume RBC cryopreservation protocol can be applied to immunohematology analysis in reference laboratories and is expected to be widely used in blood group identification, antibody screening, identification, and blood group-related research.

Objective:To investigate the effect of psychological intervention on postpartum depression.Methods:A total of 250 pregnant women who were hospitalized for delivery in the obstetrics ward of Jiaxing Maternity and Child Health Care Hospital from January 2021 to January 2022 were included in this randomized controlled study. The patients were randomly assigned to an observation group ( n = 125) and a control group ( n = 125) using a random number table. The observation group received psychological intervention, while the control group underwent routine ward rounds. Prior to and after intervention, the levels of depression [assessed by Edinburgh Postnatal Depression Scale (EPDS) score and Self-rating Depression scale (SDS) score] and anxiety [measured by Self-rating Anxiety Scale (SAS) score] were compared between the two groups. Results:Before intervention, the EPDS, SDS, and SAS scores in the observation group were (16.95 ± 4.20) points, (65.83 ± 7.52) points, and (61.12 ± 7.59) points, respectively. In the control group, these scores were (16.62 ± 4.03) points, (64.49 ± 7.98) points, and (60.88 ± 7.85) points, respectively. At 7 days post-discharge, the EPDS, SDS, and SAS scores in the observation group were (11.54 ± 2.39) points, (51.12 ± 4.62) points, and (49.71 ± 4.22) points, respectively. In the control group, these scores were (15.93 ± 3.87) points, (63.21 ± 6.95) points, and (59.65 ± 6.43) points, respectively. At 7 days post-discharge, the EPDS, SDS, and SAS scores in the observation group were significantly decreased compared with those before intervention ( t = 18.35, 27.09, 21.60, all P < 0.001). At 7 days post-discharge, the EPDS, SDS, and SAS scores in the observation group were significantly lower than those in the control group ( t = -10.79, -16.19, -14.44, all P < 0.001). There were no significant differences in EPDS, SDS, and SAS scores in the control group between before intervention and 7 days post-discharge ( t = 1.95, 1.91, 1.92, P = 0.051, 0.056, 0.055). Conclusion:Psychological intervention can effectively alleviate postpartum depression and anxiety in postpartum women and deserves clinical promotion.

Objective:Through comprehensive analysis of symptoms and signs, biochemistry, imaging, and dynamic tests, to explore the diagnosis and differential diagnosis of thyrotropin-secreting pituitary adenoma(TSH adenoma) and syndrome of resistance to thyroid hormone(RTH).Methods:A retrospective analysis was conducted on clinical data from 14 patients who visited the First Affiliated Hospital of Zhengzhou University from July 2016 to September 2022, exhibiting elevated levels of free thyroxine(FT4) and free triiodothyronine(FT3) in the presence of increased TSH.Results:There were 7 cases of TSH adenoma and 7 cases of RTH, with the average age of diagnosis at 40.0 years and 26.6 years, respectively. Thirteen patients showed thyrotoxicosis or occasional palpitation, some with pituitary occupancy manifestations or abnormal growth and development; One patient presented with neck thickening. Sex hormone binding globulin was elevated in 3 cases of TSH adenoma. Pituitary magnetic resonance imaging showed that all 7 cases of TSH adenoma were macroadenomas and 1 case of RTH was microadenoma. The octreotide suppression test in 13 patients was inhibited, but there was a significant difference in the inhibition rate of 24 h/2 h TSH inhibition rate of TSH adenoma and RTH, ranging from 46.6% to 83.9% and 4.6% to 28.8% respectively. Six cases of RTH had thyroid hormone receptor β mutation.Conclusion:Syndrome of inappropriate secretion of thyrotropin is a rare condition, mainly including TSH adenoma and RTH. The diagnosis and differentiation of the two conditions require comprehensive assessment incorporating family history, symptoms and signs, laboratory tests, dynamic test, and genetic test. Among these, the 24 h/2 h TSH inhibition rate of octreotide suppression test can effectively distinguish TSH adenoma from RTH.

This article is based on ZHANG Jingyue's theory of yin-yang holism to explore the etiology， pathogenesis， and treatment of acute exacerbation of rheumatoid arthritis-associated interstitial lung disease （RA-ILD）. It is believed that the foundation of acute exacerbation of RA-ILD lies in real yin insufficiency and yin fail to control yang； external pathogen attacking is a common cause of acute exacerbation of RA-ILD. For treatment， it is important to first suppress ministerial fire by prescribing modified Yinhuo Decoction （引火汤）； if ministerial fire submerged， focus should be on nourishing both yin and yang； if real yin deficiency is the main issue， modified Zuogui Pill （左归丸） should be used； if real yang deficiency is prominent as well， modified Yougui Pill （右归丸） can be chosen. When yin and yang balanced， the disease could be solved.

Objective To explore the characteristics of response to joint attention(RJA)under diverse guiding behaviors for pre-schoolers with moderate to severe autism spectrum disorder(ASD). Methods From March to May,2023,21 children with moderate to severe ASD and 16 children with developmental de-lays matched the physiological ages were selected from Jiaxing Sunlight Rehabilitation Kindergarten,and 16 typ-ical developmental children matched the physiological ages were selected from the kindergartens nearby.They accepted a behavioral experiment on RJA.The number of RJA,frequence of RJA and the coefficient of variation of guiding behaviors needed to RJA were compared among the three groups. Results About half of the ASD group responded after guiding of head-turning,and the others required higher levels of guiding.The frequence of RJA after guiding of head-turning was less in the ASD group than in the typical devel-opment group(χ2>6.170,P<0.05),and the coefficient of variation of guiding behaviors was more(d=4.039,P<0.001). Conclusion Preschoolers with moderate to severe ASD are able to respond to joint attention,and this ability is poorer than typically developing children.The guiding behavior of the evaluator should be considered in assessing and intervening RJA in preschoolers with ASD.

Refractory chronic cough belongs to the category of "refractory cough" in traditional Chinese medicine， and it is believed that the root cause of intractable chronic cough is wind lodging in the spleen collaterals， with poor spleen yang and deficient kidney essence as the pathologic basis of the disease， which is present throughout the disease. The method advocated is to search the spleen collaterals and eliminate latent wind， warm the spleen yang and smooth the middle jiao， cultivate the kidney essence and consolidate the root， prescribed with modified Fuzi Lizhong Decoction （附子理中汤） plus Erxian Decoction （二仙汤） as the basis. The Fuzi Lizhong Decoction can warm yang and fortify the middle， and smooth the middle jiao， and the Erxian Decoction can cultivate the kidney essence and consolidate the innate. The two prescriptions could combine with Suye （Perilla frutescens）， Jingjie （Dysphania ambrosioides）， Fangfeng （Carum carvi） and other medicinals of cleaning characteristic， or combine with Gouteng （Uncaria rhynchophylla）， Chuanshanlong （Dioscorea nipponica）， Dilong （Kummerowia striata） and other medicinals of worm or cane category， to find the wind and expel pathogen， smooth spleen collaterals.

Objective:To evaluate the short-term rehabilitation effect of wearable visual training devices based on extended reality (XR) glasses in patients after macular hole surgery.Methods:A self-controlled study was conducted.Eleven patients with monocular low vision after macular hole surgery were recruited at Renmin Hospital of Wuhan University from October 2022 to March 2024.All patients underwent biofeedback training for 3 months using the independently developed visual rehabilitation training glasses LOOKBON T10.The LogMAR best corrected visual acuity (BCVA), retinal sensitivity, effective fixation rate, fixation stability, reading speed, vertical metamorphopsia (MV), horizontal metamorphopsia (MH), and Chinese version of the visual-related quality of life assessment form (CVRQoL-25) were compared before and after training.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Renmin Hospital of Wuhan University (No.WDRY2024-K263).Written informed consent was obtained from each subject.Results:After training, the patients' BCVA, retinal sensitivity, effective fixation rate, fixation stability, and reading speed were 0.69±0.19, (21.61±2.75)db, (92.43±4.06)%, (93.09±4.31)%, and (104.82±21.85) characters/minute, respectively, which were significantly improved compared to 0.85±0.28, (17.71±3.17)db, (31.83±19.05)%, (32.35±19.12)%, and (69.64±20.17) characters/minute before training ( t=5.253, -5.987, -11.561, -12.003, -11.682; all at P<0.001).After training, MV and MH were (0.29±0.20)° and (0.21±0.24)°, respectively, which were significantly reduced compared to pre-training (0.44±0.24)° and (0.43±0.41)° ( t=9.238, 4.068; both at P<0.01).After training, the CVRQoL-25 score was 1 193.18±229.43, which was significantly higher than pre-training 947.73±203.86 ( t=-11.687, P<0.001). Conclusions:The application of wearable visual training equipment based on XR glasses can effectively improve the visual function of patients with poor visual function recovery after macular hole surgery, and enhance their quality of life.

Objective:To explore the possible reasons for diffuse uptake of 131I in both lungs of differentiated thyroid cancer (DTC) patients after 131I treatment. Methods:A retrospective case series study was conducted. Forty-six DTC patients who received 131I treatment at Shanxi Province Cancer Hospital from June 2015 to June 2021 were collected, and whole body scan of these patients showed diffuse uptake of 131I in both lungs on the 7th day after treatment. Based on SPECT/CT fusion images, thyroid globulin levels, and thyroid globulin antibody (TgAb) levels, the possible reasons for diffuse uptake of 131I in both lungs were analyzed. Results:SPECT/CT fusion images showed no abnormal density shadows in 10 patients; stimulating thyroglobulin (sTg) was (11±4) ng/ml, TgAb was (1.2±0.5)%, inhibitory thyroglobulin was (5.3±1.5) ng/ml; the possible reason for diffuse uptake of 131I in both lungs was the presence of early small metastatic nodules that cannot be detected by conventional CT scans, and these nodules absorbed 131I. SPECT/CT fusion images showed multiple round nodules in both lungs in 36 patients; sTg was (281±10) ng/ml, TgAb was (1.7±0.7) %; the reason for diffuse uptake of 131I in both lungs was the uptake of 131I by metastatic lesions in both lungs. Conclusions:Different degrees of tumor metastasis may be the cause of diffuse uptake of 131I in both lungs of DTC patients after 131I treatment.

Objective To investigate the predictive value of CALLY index for ischemic post-stroke depression(PSD).Methods The clinical data of 179 patients with ischemic stroke were included,and the demographic information,medical history,stroke severity and laboratory indicators at admission were collected.After 6 months of follow-up,all patients were assessed for depressive symptoms using the 17-item Hamilton Depression Scale(HAMD-17).Patients were divided into the PSD group(48 cases)and the non-PSD group(131 cases).Differences in clinical characteristics were compared between the PSD group and the non-PSD group.CALLY index was calculated from C-reactive protein(CRP),albumin(ALB)and lymphocyte counts.Receiver operating characteristic(ROC)curve was used to analyze the predictive value of CALLY index to PSD.Spearman correlation analysis was used for the correlation between CALLY index and neurological and cognitive function in PSD patients.K-M curve and Cox regression were used for analyzing the influence of CALLY index on PSD.Results The CALLY index of 179 patients ranged from 0.54 to 1.79,with a median of 1.08.ROC curve analysis showed that the optimal critical value of CALLY index to predict PSD was 1.09,and the area under ROC curve was 0.757(95%CI:0.687-0.818).Compared with the non-PSD group,the proportion of females was higher in the PSD group,and the proportion of patients with hyperlipidemia was increased with shorter years of education.The serum C-reactive protein(CRP)was higher,and albumin(ALB)and CALLY index were lower(P＜0.05).The K-M curve showed that the incidence of PSD was significantly higher in the low CALLY index group(CALLY≤1.08)than that in the higher CALLY index group(CALLY＞1.08,33.0%vs.20.5%,Log rank χ2=8.553,P=0.004).Cox regression analysis showed that after adjusting for other covariates,the decreased CALLY index was an independent risk factor for PSD(HR=2.651,95%CI:1.269-5.540,P＜0.05).Conclusion CALLY index has a certain predictive value for PSD in acute ischemic stroke patients,which is helpful for early identification and timely intervention to improve the prognosis of patients.