Objective To investigate the effects of electroacupuncture at Neiguan(PC6)combined with Buyang Huanwu Decoction on myocardial edema-related proteins and its cardioprotective role in mice with acute high-altitude hypoxic myocardial injury,and to explore the potential mechanisms by which this combined therapy ameliorates acute hypoxic myocardial damage.Methods Mice were randomly divided into control,hypoxia model,electroacupuncture at Neiguan,Buyang Huanwu Decoction,and electroacupuncture at Neiguan+Buyang Huanwu Decoction groups.Except for the normal control group,all other groups were subjected to the establishment of an acute high-altitude hypoxia-induced myocardial injury model.Four days before entering the low-pressure hypoxia animal simulation chamber,the electroacupuncture at Neiguan group was treated with bilateral electroacupuncture at Neiguan,the Buyang Huanwu Decoction group was treated with Buyang Huanwu Decoction by gavage,and the electroacupuncture at Neiguan+Buyang Huanwu Decoction group was treated with a combination of electroacupuncture at Neiguan and Buyang Huanwu Decoction.The intervention lasted for 7 days.The normal control group and the hypoxia model group were handled normally without any other treatment.Myocardial pathology and ultrastructure were evaluated using HE staining and transmission electron microscopy.Serum levels of creatine kinase-MB(CK-MB)and cardiac troponin I(cTn-I)were measured by ELISA.Western blot was performed to quantify β1-AR,cAMP,PKA,and AQP1 protein expression.Results Compared with normal control group,the hypoxia model group exhibited significant myocardial damage,elevated cardiac biomarkers,and upregulated β1-AR/cAMP/PKA pathway proteins with increased AQP1 expression(all P<0.01).The electroacupuncture at Neiguan+Buyang Huanwu Decoction group demonstrated attenuated myocardial injury,reduced biomarker levels,and downregulated target proteins(all P<0.01)versus the hypoxia model group.Conclusion Electroacupuncture at Neiguan combined with Buyang Huanwu Decoction alleviates myocardial edema and injury in acute hypobaric hypoxia by reducing vascular permeability,potentially via suppression of the β1-AR/cAMP/PKA pathway and subsequent inhibition of AQP1 expression.

The significance of the retinal neurovascular unit(NVU)in glaucoma has been established,and it holds po-tential as an effective therapeutic target for neurodegenerative disorders such as glaucoma in the future.NVUs are a cell community composed of neurons,glial cells,and vascular cells,and they engage in the physiological and pathological inter-actions between retinal neurovasculature through neurovascular coupling(NVC).As a representative neurodegenerative disorder of the retina,glaucoma is closely associated with retinal microvasculature and glial cells,rendering the normal functioning of the NVU particularly crucial.In this paper,the structural foundation of the NVU was reviewed,including the leading and coordinating roles of retinal neurons and glial cells in the NVU,and the role of NVCs in regulating retinal blood flow,metabolism,and the clearance of toxic substances.Furthermore,the associations of the components of the NVU and their functional abnormalities with glaucoma were elucidated.This paper will deepen the understanding of the mechanisms of glaucoma from a neurovascular perspective,and provide new preventive directions or therapeutic targets for neuropro-tection in glaucoma.

LHFPL5 gene is involved in the electromechanical conduction of cochlear hair cells and plays an important role in maintaining hearing and balance functions.This review aims to investigate the mechanism of LHF-PL5 gene and its related proteins in the pathogenesis of hearing loss.We analyzed the hearing loss caused by LHF-PL5 gene mutation,and discussed the characteristics of hearing loss population.The molecular etiology of deafness caused by LHFPL5 gene was discussed through the conclusion and summary of the study results,which provided a basis for whether LHFPL5 gene screening was necessary for deaf people in China,and provided theoretical guidance for subsequent basic research and clinical diagnosis and treatment.

The significance of the retinal neurovascular unit(NVU)in glaucoma has been established,and it holds po-tential as an effective therapeutic target for neurodegenerative disorders such as glaucoma in the future.NVUs are a cell community composed of neurons,glial cells,and vascular cells,and they engage in the physiological and pathological inter-actions between retinal neurovasculature through neurovascular coupling(NVC).As a representative neurodegenerative disorder of the retina,glaucoma is closely associated with retinal microvasculature and glial cells,rendering the normal functioning of the NVU particularly crucial.In this paper,the structural foundation of the NVU was reviewed,including the leading and coordinating roles of retinal neurons and glial cells in the NVU,and the role of NVCs in regulating retinal blood flow,metabolism,and the clearance of toxic substances.Furthermore,the associations of the components of the NVU and their functional abnormalities with glaucoma were elucidated.This paper will deepen the understanding of the mechanisms of glaucoma from a neurovascular perspective,and provide new preventive directions or therapeutic targets for neuropro-tection in glaucoma.

LHFPL5 gene is involved in the electromechanical conduction of cochlear hair cells and plays an important role in maintaining hearing and balance functions.This review aims to investigate the mechanism of LHF-PL5 gene and its related proteins in the pathogenesis of hearing loss.We analyzed the hearing loss caused by LHF-PL5 gene mutation,and discussed the characteristics of hearing loss population.The molecular etiology of deafness caused by LHFPL5 gene was discussed through the conclusion and summary of the study results,which provided a basis for whether LHFPL5 gene screening was necessary for deaf people in China,and provided theoretical guidance for subsequent basic research and clinical diagnosis and treatment.

So far， there are still no specific treatment methods for severe hepatitis and liver failure， resulting in a mortality rate of over 70%， and they are the difficulties in the treatment of critical illness in China and globally. Liver transplantation is currently the most effective treatment method for end-stage liver disease， but only 1%‍ ‍—‍ ‍2% of patients can receive the opportunity for organ transplantation. The bioartificial liver support system utilizes external mechanical， physical， and biological devices to remove various harmful substances accumulated in the patient’s body， compensate for the metabolic functions of the liver， supplement necessary substances， improve internal environment， promote the recovery of liver function， help patients get through the critical period， and save time for liver transplantation， and therefore， it is considered one of the important methods for the treatment of end-stage liver disease. Since hepatocytes are the core element of bioartificial liver， this article summarizes the sources of liver seed cells， 3D culture methods， and corresponding bioreactor culture systems and hopes to gradually solve the core issue of large-scale in vitro preparation of hepatocytes to obtain hepatocytes with adequate quantity and quality， which urgently needs to be addressed in clinical application.

【Objective】 To objectively evaluate the quality control level of blood testing process in blood banks through quantitative monitoring and trend analysis, and to promote the homogenization level and standardized management of blood testing laboratories in blood banks. 【Methods】 A quality monitoring indicator system covering the whole process of blood collection and supply, including blood donation service, blood component preparation, blood testing, blood supply and quality control was established. The questionnaire Quality Monitoring Indicators for Blood Collection and Supply Process with clear definition of indicators and calculation formulas was distributed to 17 blood banks in Shandong province. Quality monitoring indicators of each blood bank from January to December 2022 were collected, and 31 indicators in terms of blood testing were analyzed using SPSS25.0 software. 【Results】 The proportion of unqualified serological tests in 17 blood bank laboratories was 55.84% for ALT, 13.63% for HBsAg, 5.08% for anti HCV, 5.62% for anti HIV, 18.18% for anti TP, and 1.65% for other factors (mainly sample quality). The detection unqualified rate and median were (1.23±0.57)% and 1.11%, respectively. The ALT unqualified rate and median were (0.74±0.53)% and 0.60%, respectively. The detection unqualified rate was positively correlated with ALT unqualified rate (r=0.974, P<0.05). The unqualified rate of HBsAg, anti HCV, anti HIV and anti TP was (0.15±0.09)%, (0.05±0.04)%, (0.06±0.03)% and (0.20±0.05)% respectively. The average unqualified rate, average hemolysis rate, average insufficient volume rate and the abnormal hematocrit rate of samples in 17 blood bank laboratories was 0.21‰, 0.08‰, 0.01‰ and 0.02‰ respectively. There were differences in the retest concordance rates of four HBsAg, anti HCV and anti HIV reagents, and three anti TP reagents among 17 blood bank laboratories (P<0.05). The usage rate of ELISA reagents was (114.56±3.30)%, the outage rate of ELISA was (10.23±7.05) ‰, and the out of range rate of ELISA was (0.90±1.17) ‰. There was no correlation between the out of range rate, outrage rate and usage rate (all P>0.05), while the outrage rate was positively correlated with the usage rate (r=0.592, P<0.05). A total of 443 HBV DNA positive samples were detected in all blood banks, with an unqualified rate of 3.78/10 000; 15 HCV RNA positive samples were detected, with an unqualified rate of 0.13/10 000; 5 HIV RNA positive samples were detected, with an unqualified rate of 0.04/10 000. The unqualified rate of NAT was (0.72±0.04)‰, the single NAT reaction rate [(0.39±0.02)‰] was positively correlated with the single HBV DNA reaction rate [ (0.36±0.02) ‰] (r=0.886, P<0.05). There was a difference in the discriminated reactive rate by individual NAT among three blood bank laboratories (C, F, H) (P<0.05). The median resolution rate of 17 blood station laboratories by minipool test was 36.36%, the median rate of invalid batch of NAT was 0.67%, and the median rate of invalid result of NAT was 0.07‰. The consistency rate of ELISA dual reagent detection results was (99.63±0.24)%, and the median length of equipment failure was 14 days. The error rate of blood type testing in blood collection department was 0.14‰. 【Conclusion】 The quality monitoring indicator system for blood testing process in Shandong can monitor potential risks before, during and after the experiment, and has good applicability, feasibility, and effectiveness, and can facilitate the continuous improvement of laboratory quality control level. The application of blood testing quality monitoring indicators will promote the homogenization and standardization of blood quality management in Shandong, and lay the foundation for future comprehensive evaluations of blood banks.

【Objective】 To establish an effective quality monitoring indicator system for blood quality control in blood banks, in order to analyze the quality control indicators for blood collection and supply, and evaluate blood quality control process, thus promoting continuous improvement and standardizing management of blood quality control in blood banks. 【Methods】 A quality monitoring indicator system covering the whole process of blood collection and supply, including blood donation services, component preparation, blood testing, blood supply and quality control was established. The Questionnaire of Quality Monitoring Indicators for Blood Collection and Supply Process was distributed to 17 blood banks in Shandong, which clarified the definition and calculation formula of indicators. The quality monitoring indicator data from January to December 2022 in each blood bank were collected, and 20 quality control indicators data were analyzed by SPSS25.0 software. 【Results】 The average pass rate of key equipment monitoring, environment monitoring, key material monitoring, and blood testing item monitoring of 17 blood banks were 99.47%, 99.51%, 99.95% and 98.99%, respectively. Significant difference was noticed in the pass rate of environment monitoring among blood banks of varied scales(P<0.05), and the Pearson correlation coefficient (r) between the total number of blood quality testing items and the total amount of blood component preparation was 0.645 (P<0.05). The average discarding rates of blood testing or non-blood testing were 1.14% and 3.36% respectively, showing significant difference among blood banks of varied scales (P<0.05). The average discarding rate of lipemic blood was 3.07%, which had a positive correlation with the discarding rate of non testing (r=0.981 3, P<0.05). There was a statistically significant difference in the discarding rate of lipemic blood between blood banks with lipemic blood control measures and those without (P<0.05). The average discarding rate of abnormal color, non-standard volume, blood bag damage, hemolysis, blood protein precipitation and blood clotting were 0.20%, 0.14%, 0.06%, 0.06%, 0.02% and 0.02% respectively, showing statistically significant differences among large, medium and small blood banks(P<0.05).The average discarding rates of expired blood, other factors, confidential unit exclusion and unqualified samples were 0.02%, 0.05%, 0.003% and 0.004%, respectively. The discarding rate of blood with air bubbles was 0.015%, while that of blood with foreign body and unqualified label were 0. 【Conclusion】 The quality control indicator system of blood banks in Shandong can monitor weak points in process management, with good applicability, feasibility, and effectiveness. It is conducive to evaluate different blood banks, continuously improve the quality control level of blood collection and supply, promote the homogenization and standardization of blood quality management, and lay the foundation for comprehensive evaluation of blood banks in Shandong.

【Objective】 To establish an effective quality indicator monitoring system, scientifically and objectively evaluate the quality management level of blood banks, and achieve continuous improvement of quality management in blood bank. 【Methods】 A quality monitoring indicator system that covers the whole process of blood collection and supply was established, the questionnaire of Quality Monitoring Indicators for Blood Collection and Supply Process with clear definition of indicators and calculation formulas was distributed to 17 blood banks in Shandong. Statistical analysis of 21 quality monitoring indicators in terms of blood donation service (10 indicators), blood component preparation (7 indicators ), and blood supply (4 indicators) from each blood bank from January to December 2022 were conducted using SPSS25.0 software The differences in quality monitoring indicators of blood banks of different scales were analyzed. 【Results】 The average values of quality monitoring indicators for blood donation service process of 17 blood banks were as follows: 44.66% (2 233/5 000) of regular donors proportion, 0.22% (11/50) of adverse reactions incidence, 0.46% (23/5 000) of non-standard whole blood collection rate, 0.052% (13/25 000) of missed HBsAg screening rate, 99.42% (4 971/5 000) of first, puncture successful rate, 86.49% (173/200) of double platelet collection rate, 66.50% (133/200) of 400 mL whole blood collection rate, 99.25% (397/400) of donor satisfaction rate, 82.68% (2 067/2 500) of use rate of whole blood collection bags with bypass system with sample tube, and 1 case of occupational exposure in blood collection.There was a strong positive correlation between the proportion of regular blood donors and the collection rate of 400 mL whole blood (P<0.05). The platelet collection rate, incidence of adverse reactions to blood donation, and non-standard whole blood collection rate in large blood banks were significantly lower than those in medium and small blood banks (P<0.05). The average quality monitoring indicators for blood component preparation process of 17 blood banks were as follows: the leakage rate of blood component preparation bags was 0.03% (3/10 000), the discarding rate of lipemic blood was 3.05% (61/2 000), the discarding rate of hemolysis blood was 0.13%(13/10 000). 0.06 case had labeling errors, 8 bags had blood catheter leaks, 2.76 bags had blood puncture/connection leaks, and 0.59 cases had non-conforming consumables. The discarding rate of hemolysis blood of large blood banks was significantly lower than that of medium and small blood banks (P<0.05), and the discarding rate of lipemic blood of large and medium blood banks was significantly lower than that of small blood banks (P<0.05). The average values of quality monitoring indicators for blood supply process of 17 blood banks were as follows: the discarding rate of expired blood was 0.023% (23/100 000), the leakage rate during storage and distribution was of 0.009%(9/100 000), the discarding rate of returned blood was 0.106% (53/50 000), the service satisfaction of hospitals was 99.16% (2 479/2 500). The leakage rate of blood components during storage and distribution was statistically different with that of blood component preparation bags between different blood banks (P<0.05). There were statistically significant differences in the proportion of regular blood donors, incidence of adverse reactions, non-standard whole blood collection rate, 400 mL whole blood collection rate, double platelet collection rate, the blood bag leakage rate during preparation process, the blood components leakage rate during storage and distribution as well as the discarding rate of lipemic blood, hemolysis blood, expired blood and returned blood among large, medium and small blood banks (all P<0.05). 【Conclusion】 The establishment of a quality monitoring indicator system for blood donation services, blood component preparation and blood supply processes in Shandong has good applicability, feasibility and effectiveness. It can objectively evaluate the quality management level, facilitate the continuous improvement of the quality management system, promote the homogenization of blood management in the province and lay the foundation for future comprehensive evaluation of blood banks.

BACKGROUND:Stage Ⅲ Kümmell's disease is characterized by a high degree of vertebral compression and posterior wall defects.Most of the patients are elderly people with severe osteoporosis and various medical diseases.Clinically,some surgical methods are often at high risk and are controversial. OBJECTIVE:To investigate the clinical efficacy of screw placement combined with transpedicular impaction bone grafting in the treatment of stage Ⅲ Kümmell's disease. METHODS:The clinical data of injured vertebral screw placement combined with transpedicular impaction bone grafting in treatment of stage Ⅲ Kummell's disease from May 2016 to August 2021 were retrospectively analyzed.Visual analog scale score,Oswestry disability index,anterior vertebral heights,kyphotic Cobb angle and American Spinal Injury Association(ASIA)impairment scale were used to evaluate the effects of surgery.The operation time,intraoperative blood loss and complications were recorded.CT scans were used to evaluate the healing of injured vertebrae at the final follow-up visit. RESULTS AND CONCLUSION:(1)A total of 26 patients were included,with 7 males and 19 females,at the age range of 62-81 years[mean(69.7±4.8)years].The follow-up time was 18-60 months[mean(35.1±8.9)months].The average operative duration was 133.5 minutes(100-165 minutes),and the average intraoperative blood loss was 285.3 mL(210-350 mL).(2)Visual analog scale and Oswestry disability index scores 1 week after surgery were significantly lower than those before surgery.(3)At 1 week after surgery,the anterior vertebral height corrections and the Cobb angle were(9.0±0.7)mm and(16.2±1.0)°,respectively.During the follow-up period,the loss of vertebral height and kyphosis correction were(5.1±0.3)mm and(8.0±0.4)°,respectively.(4)14 patients(54%)had ASIA grade D before operation,which recovered to grade E at the last follow-up.CT scan showed that all patients achieved good osseous union.(5)Complications occurred in seven patients(27%),including hypostatic pneumonia in two cases,postoperative superficial wound tissue liquefaction in two cases,and adjacent vertebral compression fractures in three cases.(6)It is concluded that screw placement of the injured vertebra combined with transpedicular impaction bone grafting can rapidly rebuild spinal stability,effectively relieve pain and improve neurological function in the treatment of stage Ⅲ Kümmell's disease.This technique is an effective and relatively minimally invasive surgical option.