In recent years, the abuse of antibiotics has led to antibiotic tolerance in the process of bacterial treatment, the morbidity and mortality caused by drug-resistant bacterial infection have further increased significantly. Drug delivery systems can be precisely designed to achieve controlled drug release, thereby reducing the risk of antibiotic toxicity and resistance, it is urgent to seek novel drug delivery systems to address the challenges posed by bacterial infections. This review first outlines the epidemic and prevention situation of bacterial infection, and further summarizes living microorganisms and their derivatives-based drug delivery systems, focusing on their natural characteristics such as surface specific proteins, physiological signal sensing, directed movement, and secretion of antibacterial substances, which show great potential in the treatment of bacterial infectious diseases by demonstrating their antibacterial effects. This review aims to provide ideas for the development of novel drug delivery systems based on living microorganisms and their derivatives for the treatment of bacterial infectious diseases.

China prospective multicenter birth cohort (Prospective Omics Health Atlas birth cohort, POHA birth cohort) study was officially launched in 2022. This study, in collaboration with 12 participating units, aims to establish a high-quality, multidimensional cohort comprising 20 000 naturally conceived families and assisted reproductive families. The study involves long-term follow-up of parents and offspring, with corresponding biological samples collected at key time points. Through multi-omics testing and analysis, the study aims to conduct multi-omics big data research across the entire maternal and infant life cycle. The goal is to identify new biomarkers for maternal and infant diseases and provide scientific evidence for risk prediction related to maternal diseases and neonatal health.

OBJECTIVE: To evaluate the prospective association between cumulative resting heart rate (cumRHR) and rapid renal function decline (RRFD) in a cohort of individuals aged 60 and older. METHODS: In the Tianjin Chronic Kidney Disease Cohort Study, the individuals who underwent three consecutive physical examinations between 2014 and 2017, with estimated glomerular filtration rate (eGFR) greater than 60 mL/min per 1.73 m² and aged 60 years or older were enrolled. A total of 27,564 patients were prospectively followed up from January 1, 2017 to December 31, 2020. The 3-year cumRHR was calculated. The primary outcome was RRFD, defined as an annualized decline in eGFR of 5 mL/min per 1.73 m² or greater. Logistic and restricted spline regression models and subgroup analysis were used to investigate the association of cumRHR with RRFD after adjusting for all confounders. RESULTS: During a median follow-up of 3.2 years, a total of 4,347 (15.77%) subjects developed RRFD. In fully-adjusted models, compared with the lowest quartile of cumRHR, the odds ratio (OR) for the highest was 1.44 (1.28-1.61), P < 0.001. Furthermore, each 1-standard deviation (27.97 beats/min per year) increment in cumRHR was associated with a 17% (P < 0.001) increased risk of RRFD, with a linear positive correlation (P for non-linear = 0.803). Participants with a 3-year cumRHR ≥ 207 (beats/min) * year (equivalent to ≥ 69 beats/min per year in 3 years) were found to be at a higher risk of RRFD. CONCLUSIONS The cumRHR is significantly associated with a higher risk of RRFD among older adults. These results might provide an effective goal for managing and delaying the decline of renal function in the older adults.

Autologous ozonized blood transfusion(AOBT) is a therapy of re-transfusion of 100-200 mL of autologous blood after shaking and agitation with appropriate amount of oxygen-ozone in vitro. The oxidation of blood through the strong oxidation of ozone can enhance the non-specific immune response of the body, regulate the internal environment and promote health. This therapy has been increasingly applied in clinical practice, while no unified standard for the operation process in terms of ozone concentration, treatment frequency and treatment course had been established. This operation process of AOBT is primarily explored in order to standardize the operation process and ensure its safety and efficacy.

Humans ; Mitral Valve Stenosis/surgery* ; Transcatheter Aortic Valve Replacement ; Dilatation ; Catheterization ; Aortic Valve Stenosis/surgery* ; Aortic Valve/surgery* ; Treatment Outcome ; Heart Valve Prosthesis ; Heart Valve Prosthesis Implantation

Humans ; Mitral Valve Stenosis/surgery* ; Transcatheter Aortic Valve Replacement ; Dilatation ; Catheterization ; Aortic Valve Stenosis/surgery* ; Aortic Valve/surgery* ; Treatment Outcome ; Heart Valve Prosthesis ; Heart Valve Prosthesis Implantation

The classical famous prescription Dajianzhong Decoction is recorded in Synopsis of the Golden Chamber written by Zhang Zhongjing in the Eastern Han Dynasty. It has a long history and definite clinical effects, while this prescription has not been manufactured into Chinese patent medicine preparation. We collected many ancient books of traditional Chinese medicine(TCM) by using the method of bibliometrics and got 211 valid data terms which involved 67 ancient books. The history, main treated syndromes, formulation principle, origins and processiong of medicinal materials, and decoction method of Dajianzhong Decoction were analyzed. Despite the different views of various generations of medical experts toward the composition of this prescription, the compatibility ratio of Ginseng Radix et Rhizoma to Zingiberis Rhizoma Recens is constant. Furthermore, we explored the origins of synonyms of Dajianzhong Decoction. On the basis of this study, we hope to gain an insight into the research and development of the compound preparations of Dajianzhong Decoction and provide reference for the heritage and innovation of other classical prescriptions.
Drugs, Chinese Herbal ; Medicine, Chinese Traditional ; Prescriptions ; Rhizome

The reconstruction of tactile function during the repair of skin damage caused by factors including burns is inseparable from the functional regeneration of tactile receptor Merkel cells. Merkel cells mainly exist in the basal layer of the epidermis and are closely connected with nerves to form Merkel cell-nerve complexes, which play an important role in biological organisms. A large number of studies have shown that Merkel cells conduct precise transmission of mechanical force stimuli through the mechanically gated ion channels PIEZO2, and perform the function of tactile receptors. In this paper, we discussed the characteristics of Merkel cells and analyzed the different subgroups that may possibly exist in this type of cells and their functions, at the same time, we investigated the animal model research of touch-related diseases and the clinical diseases related to touch, revealing the importance of Merkel cell function research.
Animals ; Ion Channels/metabolism* ; Mechanotransduction, Cellular/physiology* ; Merkel Cells/physiology* ; Skin/metabolism* ; Touch/physiology*

OBJECTIVE: To evaluate the consistency and reproducibility of aortic root measurements by Anythink, a semi-automated preoperative CT analysis software, with those of 3mensio. METHODS: Sixty-seven patients undergoing transcatheter aortic valve replacement (TAVR) in the First Medical Center of Chinese PLA General Hospital from December, 2016 to February, 2022 were retrospectively enrolled in this study. A cardiology resident who completed his professional training used both the software Anythink and 3mensio (as the gold standard) to reconstruct the aortic root model and analyze the parameters of the aortic annulus and the surrounding structures. The correlation and consistency of the measurement results of two software were analyzed. Two independent residents also used Anythink software to repeat the measurements for the same patient for assessment of the reproducibility of Anythink measurements. The valve models were selected based on the measurements by Anythink and 3mensio, and similarities and differences of the two software in clinical valve selection were assessed. RESULTS: The measurements of the distances from the anulus plane to the left and right coronary ostium, average diameter of the anulus, anulus area, anulus perimeter, and the angle between the annulus and horizontal plane did not differ significantly between the two software (P > 0.05), and their measurements showed positive correlations (r= 0.884-0.981, P < 0.01). The intra-group and inter-group correlation coefficients of the anulus parameters measured by Anythink ranged from 0.894 to 0.992 and from 0.651 to 0.954, respectively. The Kappa-test values of valve models selected by Anythink and 3mensio based on the average diameter, area diameter and perimeter diameter were 0.886, 0.796 and 0.775, respectively. The intra-group Kappa values for the valve models selected based on Anythink measurements were 0.819, 0.841, and 0.795, and the inter-group Kappa values were 0.812, 0.812, and 0.768, respectively. Compared with the measurements by 3mensio, the recommended area diameter measured by Anythink was slightly greater in patients with postoperative paravalvular leakage, but slightly smaller in patients with postoperative new-onset conduction block. CONCLUSION Anythink has excellent measurement consistency and high reproducibility for aortic root measurements, and trained cardiologists can use Anythink to obtain accurate aortic root parameters before TAVR.
Humans ; Transcatheter Aortic Valve Replacement ; Reproducibility of Results ; Retrospective Studies ; Aorta ; Tomography, X-Ray Computed

To compare the performance of self-inflating bag (SIB) with T-piece resuscitator (TPR) in neonatal resuscitation.Methods:This study involved the trainees participating in a Neonatal Resuscitation Simulation Camp (NRSC) organized by Shanghai First Maternity and Infant Hospital in December 2019. They were trained to provide positive pressure ventilation with the two devices on artificial lungs. Ventilation parameters including peak inspiratory pressure (PIP), positive end-expiratory pressure (PEEP), PIP in pulmonary alveoli (PIP alv), mean airway pressure (MAP), frequency, inspiratory time (Ti), tidal volume and minute ventilation volume were recorded and analyzed by independent sample t-test or rank sum test. Results:The PIP alv, PIP, oxygen flow rate, tidal volume and minute ventilation volume delivered by TPR were significantly lower than those by SIB [(17.18±1.61) vs (24.05±4.29) cmH 2O (1 cmH 2O=0.098 kPa), t=－6.87; (17.91±1.35) vs (29.97±4.50) cmH 2O, t=－14.06; (3.65±0.25) vs (6.88±1.59) L/min, t=－11.33; (15.90±1.81) vs (24.02±4.29) ml/min, t=－10.99; (664.71±88.94) vs (1 069.49±205.68) ml/min, t=－9.89; all P<0.001]. However, compared with SIB, the PEEP in pulmonary alveoli, Ti, duration of ventilation, inspiratory to expiratory ratio were increased when using TPR [(4.76(4.69-5.57) vs 0.19(0.12-4.10) cmH 2O, T=1 190.00; (0.59±0.15) vs (0.43±0.09) s, t=5.01; (1.46±0.23) vs (1.36±0.11) s, t=2.15; 0.71±0.22 vs 0.47±0.13, t=5.14; all P<0.05]. Conclusion:TPR could deliver more stable and safer PIP, PEEP and tidal volume than SIB and keeping MAP at a stable level during positive pressure ventilation on artificial lungs.