Objective To investigate the effect of blue light on the dioptric development of the eyes of lens-induced myopia(LIM)guinea pigs.Methods Three-week-old trichromatic guinea pigs were randomly divided into three groups:control group,white light LIM(WL)group,and blue light LIM(BL)group(420 nm LED light,with an illuminance of 700 lx);guinea pigs in the latter two groups wore-10.00 D lenses in their right eyes to induce myopia.All guinea pigs under-went a 12 h light/12 h dark treatment cycle.Before and 2,4 weeks after the intervention,the diopter,axial length,retinal thickness and choroidal thickness were measured in all groups.After 4 weeks of intervention,the corneal fluorescent stai-ning and retinal Hematoxylin and Eosin(HE)staining were conducted.Results Compared with the control group,from week 0 to week 2 of the intervention(changes in weeks 0-2),the eyes in the WL group drifted(-2.22±1.28)D towards myopia,the axial length lengthened by(0.40±0.05)mm,and the retinal and choroidal thicknesses reduced by(-7.42± 7.04)μm and(-6.29±4.66)μm,respectively;compared with the WL group,in the BL group,the eyes drifted toward hyperopia by(0.48±1.16)D,the axial length increased by(0.20±0.10)mm,and retinal and choroidal thicknesses in-creased by(1.36±7.46)μm and(8.05±8.08)μm,respectively(all P＜0.05).From week 2 to week 4(changes in weeks 2-4),compared with the control group,the diopter in the WL and BL groups progressed towards myopia,with changes of(-4.64±0.50)D and(-2.11±2.02)D,respectively(both P＜0.05);the axial length lengthened,and reti-nal and choroidal thicknesses reduced in the WL group,with changes of(0.44±0.06)mm,(-7.35±5.87)μm and(-4.84±2.61)μm,while the choroidal thickness and the retinal thickness decreased in the BL group,with changes of(-0.33±5.95)μm and(-4.78±4.96)μm,respectively.Observations of corneal fluorescence staining and retinal HE staining indicated that prolonged blue light exposure could lead to damage to corneal and retinal cells.Conclusion Blue light may influence the development of myopia through choroid-related mechanisms,but its inhibitory effect is not positive-ly correlated with time.Prolonged exposure to blue light can damage the cornea and retina,thereby reducing the inhibitory effect.

Objective lo contrast the diagnostic efficacies of perineal and transrectal approaches for combined prostate biopsies guided via magnetic resonance imaging(MRI)and ultrasound fusion imaging.Method A retrospective analysis of clinical data from 271 patients subjected to combined prostate biopsies guided by MRI and ultrasound fusion imaging at the first people's hospital of Wuxue city and Wuhan Tongji Hospital from January 2022 to November 2023 was conducted.They were divided into two groups according to the puncture path,132 cases were transrectal and 139 cases were perineal.The differences between the detection rates of prostate cancer(PCa)and clinical significant prostate cancer(csPCa)across different prostate imaging reporting and data system(PI-RADS)scores and lesion localizations within the two puncture paths were compared.Results The detection rates of PCa in the perineal and transrectal puncture groups(68.3％vs.59.8％,P=0.145)and csPCa(64.7％vs.55.3％,P=0.112)did not exhibit statistically significant differences.However,the perineal puncture group experienced fewer complications.For patients with a PI-RADS score of 4,both PCa(77.2％vs.56.1％,P=0.027)and csPCa(71.9％vs.48.8％,P=0.02)detection rates were higher via the perineal combined biopsy),compared to the transrectal path.Additionally,for apical(PCa:84.3％vs.48.7％,P=0.001;csPCa:81.8％vs.48.7％,P=0.004)and anterior(PCa:77.1％vs.46.5％,P=0.006;csPCa:68.6％vs.44.2％,P=0.031)prostate lesions,the detection rates via the perineal combined biopsy were considerably higher than those of the transrectal path.Conclusion For patients carrying a PI-RADS score of 4 or with prostate lesions situated at the apical or anterior section,the perineal approach for biopsy sampling emerges as the most appropriate method.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

Objective To report single-center experience on CBA combined with LAAC in treat-ment of AF.Methods A retrospective study was conducted on 27 AF patients undergoing one-stop surgery of CBA combined with LAAC in Department of Cardiovascular Diseases of the People's Hospital of Liaoning Provincie from August 2020 to November 2022.The efficacy and safety of the surgery were analyzed.Results There were 22 patients(81.5％)with LAmbre and 5 patients with Watchman(18.5％,including one case of 24 mm Watchman FLX).All the patients achieved complete pulmonary vein isolation,and conversion to sinus rhythm during operation.During a mean follow-up of 30.0±9.2 months,24 patients(88.9％)maintained sinus rhythm at 12-month follow-up,and 22 patients(81.5％)maintained sinus rhythm at 24-month follow-up.TEE at 3 months after operation displayed that all the devices were in good positions and no PDL or DRT was observed.In the 11 patients undergoing cardiac enhanced CT in 12-36 months after surgery,PDL was detected in one patient(9.1％),and uncomplete endothelialisation of the device was observed in another one(9.1％)using the Watchman device.TEE at 26 months revealed one patient(3.7％)of DRT.Conclusion One-stop surgery of CBA combined with LAAC is a feasible treatment option for patients with NVAF and at high risk of stroke.

OBJECTIVE: To investigate the effect and relative mechanism of Recombinant Human Thrombopoietin (rhTPO) on long-term hematopoietic recovery in mice with acute radiation sickness. METHODS: Mice were intramuscularly injected with rhTPO (100 μg/kg) 2 hours after total body irradiation with ⁶⁰Co γ-rays (6.5 Gy). Moreover, six months after irradiation, peripheral blood, hematopoietic stem cells (HSC) ratio, competitive transplantation survival rate and chimerization rate, senescence rate of c-kit⁺ HSC, and p16 and p38 mRNA expression of c-kit⁺ HSC were detected. RESULTS: Six months after 6.5 Gy γ-ray irradiation, there were no differences in peripheral blood white blood cells, red blood cells, platelets, neutrophils and bone marrow nucleated cells in normal group, irradiated group and rhTPO group (P>0.05). The proportion of hematopoietic stem cells and multipotent progenitor cells in mice of irradiated group was significantly decreased after irradiation (P<0.05), but there was no significant changes in rhTPO group (P>0.05). The counts of CFU-MK and BFU-E in irradiated group were significantly lower than that in normal group, and rhTPO group was higher than that of the irradiated group(P<0.05). The 70 day survival rate of recipient mice in normal group and rhTPO group was 100%, and all mice died in irradiation group. The senescence positive rates of c-kit⁺ HSC in normal group, irradiation group and rhTPO group were 6.11%, 9.54% and 6.01%, respectively (P<0.01). Compared with the normal group, the p16 and p38 mRNA expression of c-kit⁺ HSC in the irradiated mice were significantly increased (P<0.01), and it was markedly decreased after rhTPO administration (P<0.01). CONCLUSION The hematopoietic function of mice is still decreased 6 months after 6.5 Gy γ-ray irradiation, suggesting that there may be long-term damage. High-dose administration of rhTPO in the treatment of acute radiation sickness can reduce the senescence of HSC through p38-p16 pathway and improve the long-term damage of hematopoietic function in mice with acute radiation sickness.
Humans ; Mice ; Animals ; Thrombopoietin/metabolism* ; Hematopoietic Stem Cells ; Blood Platelets ; Recombinant Proteins/therapeutic use* ; Radiation Injuries ; RNA, Messenger/metabolism*

OBJECTIVE: To explore the chronic injury and its possible mechanism of ionizing radiation on multipotent hematopoietic progenitor cells (MPPs) by determining the related indicators of MPPs in bone marrow of mice post-radiation. METHODS: Sixteen C57BL/6 adult mice were randomly divided into normal control and irradiation groups, 8 mice in each group. The mice in irradiation group were exposed to 6 Gy X-ray. The proportion of bone marrow MPPs, their apoptosis and proliferation 2 months after irradiation were detected by flow cytometry. Mitochondrial activity and levels of reactive oxygen species (ROS) in each MPPs population were detected by Mitotracker Red and DCFDA probes, and the senescent state of MPPs in the bone marrow was analyzed. RESULTS: Ionizing radiation could reduce the proportion of MPPs in mouse bone marrow. The proportions and numbers of MPP1, MPP3 and MPP4 in the bone marrow were significantly decreased after whole-body irradiation with 6 Gy X-ray (P<0.05). In addition, radiation significantly reduced the colony-forming capacity of MPPs in bone marrow (P<0.05), the proportions of apoptotic cells in the MPP1 and MPP4 cell populations increased significantly in the bone marrow (P<0.05). The activity of mitochondria was significantly reduced in the bone marrow MPP2, MPP3 and MPP4 cell populations compared with that of the control group (P<0.05). It was also found that the radiation could significantly increase the ROS levels of MPPs in bone marrow, and the content of ROS in the MPP2, MPP3 and MPP4 cell population of the bone marrow was significantly increased(P<0.05). The senescent cells ratios of MPP1, MPP3 and MPP4 cells in the bone marrow after irradiation were significantly higher than those in the control group (P<0.05). CONCLUSION Ionizing radiation can cause chronic MPPs damage in mice, which is closely associated with persistent oxidative stress, cells apoptosis, and cellular senescence.
Mice ; Animals ; Bone Marrow ; Reactive Oxygen Species ; Mice, Inbred C57BL ; Hematopoietic Stem Cells ; Whole-Body Irradiation ; Radiation, Ionizing ; Bone Marrow Cells

Objective: To identify and analyze 3D architecture of the mutational sites of susceptible genes in a pedigree with familial hypercholesterolemia-like phenotype (FHLP). Methods: This is a case series study. A pedigree with suspected familial hypercholesterolemia was surveyed. The proband admitted in Beijing Anzhen Hospital in April 2019. Whole-exome sequencing was performed to determine the mutational sites of susceptible genes in the proband. Polymerase chain reaction (PCR) sequencing was used to verify the pathogenic variant on proband's relatives. The structural and functional changes of the proteins were analyzed and predicted by Discovery Studio 4.0 and PyMol 2.0. Results: The patients in the pedigree showed abnormal lipid profiles, especially elevated levels of total cholesterol(TC). The genetic screening detected the c.1330C>T SNP in the exon 8 of lipase C (LIPC) gene, this mutation leads to an amino acid substitution from arginine to cysteine at position 444 (Arg444Cys), in the proband and proband's father and brother. In this family, members with this mutation exhibited elevated TC, whereas lipid profile was normal from the proband's mother without this mutation. This finding indicated that LIPC: c.1330C>T mutation might be the mutational sites of susceptible genes. The analysis showed that Arg444Cys predominantly affected the ligand-binding property of the protein, but had a limited impact on catalytic function. Conclusion: LIPC: c.1330C>T is a new mutational site of susceptible genes in this FHLP pedigree.
Humans ; Male ; Hyperlipoproteinemia Type II/genetics* ; Lipase/genetics* ; Lipids ; Mutation ; Pedigree ; Phenotype ; Proteins

AIM: To investigate the short-term visual quality outcomes after femtosecond laser small incision lenticule extraction(SMILE)and evolution implantable collamer lens(EVO-ICL)implantation for the correction of moderate myopia.METHODS: Prospective control study. A total of 51 cases(51 eyes)with moderate myopia who underwent SMILE or EVO-ICL implantation surgery at Weifang Eye Hospital from April 2021 to February 2022 were selected. They were divided into SMILE group(30 patients, 30 eyes)and EVO-ICL group(21 patients, 21 eyes)according to the surgical methods. The changes of visual acuity [uncorrected distance visual acuity(UDVA), corrected distance visual acuity(CDVA)], diopter [spherical equivalent(SE)] and related parameters of optical quality analysis system(OQAS Ⅱ)were observed before surgery and at 1wk, 1 and 3mo after surgery, and the quality of vision(QoV)questionnaire was completed.RESULTS: At 3mo after surgery, the safety index(postoperative CDVA/preoperative CDVA)of SMILE gruop and EVO-ICL group were 1.20(1.00, 1.20)and 1.20(1.00, 1.38), respectively, the efficacy index(postoperative UDVA/preoperative CDVA)were 1.00(1.00, 1.20)and 1.00(1.00, 1.20), respectively, and the percentage of SE within ±0.50D was 87% and 100%, respectively. In SMILE group, the objective scattering index(OSI)was increased after surgery, while modulation transfer function cutoff frequency(MTF cutoff), contrast visual acuity(VA)100%, and VA20% at 1wk and 1mo after surgery, and Strehl ratio(SR)and VA9% at each time point after surgery were all decreased compared with those before surgery(all P<0.05). The OSI, MTF cutoff, SR and VA of EVO-ICL group showed no difference at each time point after surgery compared with those before surgery(all P>0.05). The most common visual symptoms after SMILE and EVO-ICL implantation were visual haze and halos, respectively.CONCLUSION: Both SMILE and EVO-ICL implantation have good safety, efficacy and predictability in the short term after the correction of moderate myopia. Both groups had visual symptoms after surgery, but the overall satisfaction of patients was high. Furthermore, EVO-ICL implantation has better objective visual quality performance.

Purpose: Cavernous nerve injury induced erectile dysfunction (ED) is a refractory complication with high incidence in person under radical prostatectomy. Studies have shown that relaxin-2 (RLX-2) plays a vital role of endothelial protection, vasodilation, anti-fibrosis and neuroprotection in a variety of diseases. However, whether penile cavernous erection can benefit from RLX-2 remains unknown. The purpose of the experiment was to explore the effects of RLX-2 on ED in the rat suffering with bilateral cavernous nerve injury (BCNI). Materials and Methods: The rats were divided into three groups: Sham group was underwent sham operation, BCNI+RLX group or BCNI group was underwent bilateral cavernous nerve crush and then randomly treated with RLX-2 (0.4 mg/kg/d) or saline by continuous administration using a subcutaneously implanted micro pump for 4 weeks respectively. Then, erectile function was evaluated by electrical stimulation of cavernous nerves. Cavernous nerves and penile tissues and were collected for histological evaluation. Results: Erectile function of rats with BCNI was partially improved after RLX-2 treatment. The BCNI group had lower expression of relaxin family peptide receptor (RXFP) 1, p-AKT/AKT, p-eNOS/eNOS ratios than sham operation rats, but RLX-2 could partially reversed these changes. Histologically, the BCNI+RLX group had a significant effect on preservation of neurofilament, neuronal glial antigen 2 of penile tissue and nNOS of cavernous nerves when compared with BCNI group. RLX-2 could inhibited the lever of BCNI induced corporal fibrosis and apoptosis via regulating TGFβ1-Smad2/3-CTGF pathway and the expression of Bax/Bcl-2 ratio, caspase3. Conclusions RLX-2 could improve erectile function of BCNI rats by protecting cavernous nerve and endothelial function and suppressing corporal fibrosis and apoptosis via RXFP1 and AKT/eNOS pathway. Our findings may provide a promising treatment for refractory BCNI induced ED.

UNLABELLED: AbstractObjective: To analyze the expression of FOSB in acute myeloid leukemia （AML） and its correlation with prognosis of the patient based on the large sample data. METHODS: The genome, transcriptome, gene chip and clinical information from multiple public databases were statistical analyzed. RESULTS: The expression of FOSB gene in AML patients was significantly higher than that in normal people. The prognostic analysis of the 163 patients showed that the patients with high FOSB expression showed longer OS and EFS than those with FOSB low expression. The patients were further divided into chemotherapy group and allogeneic hematopoietic stem cell transplantation (allo-HSCT) group according to the treatment method, and then each group was divided into two subgroups (FOSBhigh, FOSBlow) according to the median expression level of FOSB. In the allo-HSCT group, the patients with FOSB high expression was longer event-free survival (EFS: P=0.017) and overall survival (OS: P=0029). At the same time, allo-HSCT in patients with high FOSB expression could improve the prognosis of the patients (Chemotherapy vs Allo-HSCT, OS: P<0.001, EFS: P=0.007). Multivariate analysis showed that the high expression of FOSB was an independent favorable prognostic factor for EFS and OS (EFS: HR=0.501， P=0.019; OS: HR=0.461， P=0.009) of the patients. CONCLUSION The high expression of FOSB indicated a good prognosis for acute myeloid leukemia.
Hematopoietic Stem Cell Transplantation ; Humans ; Leukemia, Myeloid, Acute/drug therapy* ; Multivariate Analysis ; Prognosis ; Proto-Oncogene Proteins c-fos/genetics*