[This corrects the article DOI: 10.1016/j.apsb.2024.04.021.].

Objective:To evaluate the effects of adipose-derived stem cells (ADSCs) and ADM microparticle on diabetic wound healing.Methods:ADSCs was co-cultured with ADM microparticle in vitro. The models of diabetic nude mice were established by intraperitoneal injection of STZ and the full-thickness skin defects were designed on the back. All 24 diabetic mice were randomly divided into 4 group: experimental groups were transplanted with ADSCs and ADM microparticle and the other groups were transplanted with ADSCs, ADM microparticle and blank control group was set up. On the 7th and 14 th days, the wound healing rate of 3 mice randomly selected from each group was calculated, and the thickness between dermis and epidermis was measured by hematoxylin and eosin staining. The density of neovascularization was measured by immunohistochemical staining. The differences were compared between the groups.Results:Compared to the ADSCs groups, the mice of the experimental groups showed higher cell survival rate. The wound healing rate in the experimental groups was (86.0±2.7)% (7 days) and (98.5±1.1)% (14 days), thicker dermis-epidermis distance was (99.1±1.8) μm (7 days) and (124.3±4.3) μm (14 days) ( P<0.05), and higher density of neovascularization was noted. Conclusions:The transplantation with active ADM microparticle can significantly promote neovascularization and wound healing of diabetic wound.

Acute respiratory failure due to acute hypoxemia is the major manifestation in severe coronavirus disease 2019 (COVID-19). Rational and effective respiratory support is crucial in the management of COVID-19 patients. High-flow nasal cannula (HFNC) has been utilized widely due to its superiority over other non-invasive respiratory support techniques. To avoid HFNC failure and intubation delay, the key issues are proper patients, timely application and improving compliance. It should be noted that elder patients are vulnerable for failed HFNC. We applied HFNC for oxygen therapy in severe and critical ill COVID-19 patients and summarized the following experiences. Firstly, to select the proper size of nasal catheter, to locate it at suitable place, and to confirm the nose and the upper respiratory airway unobstructed. Secondly, an initial ow of 60 L/min and 37℃ should be given immediately for patients with obvious respiratory distress or weak cough ability; otherwise, low-level support should be given first and the level gradually increased. Thirdly, to avoid hypoxia or hypoxemia, the treatment goal of HFNC should be maintained the oxygen saturation (SpO) above 95% for patients without chronic pulmonary disease. Finally, patients should wear a surgical mask during HFNC treatment to reduce the risk of virus transmission through droplets or aerosols.
Aged ; Betacoronavirus ; isolation & purification ; Cannula ; Coronavirus Infections ; therapy ; Humans ; Oxygen ; administration & dosage ; Pandemics ; Pneumonia, Viral ; therapy

Acute respiratory failure due to acute hypoxemia is the major manifestation in severe coronavirus disease 2019 (COVID-19) induced by severe acute respiratory syndrome coronavirus 2 infection. Rational and effective respiratory support is crucial in the management of COVID-19 patients. High-flow nasal cannula (HFNC) has been utilized widely due to its superiority over other non-invasive respiratory support techniques. To avoid HFNC failure and intubation delay, the key issues are proper patients, timely application and improving compliance. It should be noted that elder patients are vulnerable for failed HFNC. We applied HFNC for oxygen therapy in severe and critical COVID-19 patients and summarized the following experiences. Firstly, to select the proper size of nasal catheter, to locate it at suitable place, and to confirm the nose and the upper respiratory airway unobstructed. Secondly, an initial flow of 60 L/min and 37℃ should be given immediately for patients with obvious respiratory distress or weak cough ability; otherwise, low-level support should be given first and the level gradually increased. Thirdly, to avoid hypoxia or hypoxemia, the treatment goal of HFNC should be maintained the oxygen saturation (SpO) above 95% for patients without chronic pulmonary disease. Finally, patients should wear a surgical mask during HFNC treatment to reduce the risk of virus transmission through droplets or aerosols.
Aged ; Betacoronavirus ; Cannula ; Coronavirus Infections ; complications ; therapy ; Humans ; Hypoxia ; etiology ; prevention & control ; therapy ; Masks ; Oxygen ; administration & dosage ; Oxygen Inhalation Therapy ; instrumentation ; standards ; Pandemics ; Pneumonia, Viral ; complications ; therapy

Objective:To understand the needs of end-stage cancer patients for hospice care, so as to provide a basis for the development of human-centered quality nursing services in hospice care.Methods:13 patients with end-stage cancer in tumor ward were interviewed by personal in-depth interview, and the data were sorted and analyzed by Colaizzi's seven-step analysis method.Results:A total of four themes of hospice care needs of patients with end-stage cancer were extracted. The need to maintain self-subject: the desire to maintain self-efficacy and self-image of dignity in life; the need to relieve the symptoms of self-discomfort. The need to relieve the physical symptoms and psychological discomfort. Meet the needs of self-determination: participate in medical care decisions and choose comfortable social relationships. Express their own emotional needs: the past farewell and remembrance and future wish to achieve the expectationsConclusions:Patients with end-stage cancer have diverse needs for hospice care. In clinical work, medical staff should adhere to the people-oriented concept, explore patients' needs and preferences, and implement individualized quality nursing measures to meet patients' needs for hospice care.

Objective:In this study, we aimed to determine the change and clinical significance of serum level Apo A1 in MM patients.Methods:In total, 412 multiple myeloma patients were examined. SPSS 22.0 was used for data analysis. Correlation analysis was performed using linear correlation or Spearman rank correlation coefficients. Measurement data were analyzed with the t-test, Mann-Whitney U-test, or oneway analysis of variance (ANOVA) . Used the ROC curve to calculate the cutoff value and compared the OS and PFS between high Apo A1 subgroup and low Apo A1 subgroup with Kaplan-Meier survival analysis.Results:Our study showed that value of Apo A1 in the patient group was lower than that in the control group (0.89 g/L vs 1.24 g/L, P<0.05) . We found that Apo A1 dynamically changed with different MM stages. As it was increased when the disease was in remission, and decreased after disease in progression. According the result of multivariate analysis Apo A1 reduction become the independent risk factors of MM. On the basis of Kaplan-Meier survival analysis between high Apo A1 subgroup and low Apo A1 subgroup, we found higher Apo A1 patienta had longer OS rate and PFS. Conclusions:Apo A1 is a useful biomarker of tumor burden and a prognostic factor of multiple myeloma.

Objective To study the cell morphology and differentiation efficiency when rabbit bone marrow mesenchymal stem cells (BMSCs) were induced osteogenic differentiation as culturing by autologous platelet-rich plasma (PRP) instead of serum,and to explore a new method of inducing BMSCs osteogenic differentiation.Methods The PRP was prepared by arterial blood of rabbit.Punctured and The bone marrow was sampled from rabbit's iliac bone,and BMSCs were collected,which divided into PRP group,fetal calf serum (FBS) group and serum-free control group,and cultured in 10％ autologous PRP,10％ FBS and serum-free respectively,combined with DMEM-F12 medium.The second generation cells were divided into experimental and control groups.The experimental groups' medium was added dexamethasone,β-sodium glycerophosphate and ascorbic acid,and the control groups went on.The cell morphological difference of each group was Observed between anterior and after inducing differentiation,and compared between each group.Results BMSCs of PRP and FBS groups grew quickly,presented like fusiform form before induction,and increasd in volume,became a triangle,polygonal and round form gradually after osteogenic induction.Cells of PRP and FBS groups aggregated spontaneously and multilayered,and formed calcium nodules and bone-like structure after induced 7 days averagely,which could be stained red by alizarin red S;cells of serum-free groups were induced 14 days averagely,only three samples showed osteogenesis performance.Cells of PRP and FBS groups differentiation efficiency was superior to serum-free groups when inducd 20 days,the difference was statistically significant (P＜0.05),and the difference between efficiency of PRP and FBS groups was not significant (P＞0.05).Conclusions Autologous PRP could be used to proliferate and induce osteogenic differentiation of BMSCs instead of serum.

Objective To compare the effect of the bipolar electric coagulation and unipolar electric coagulation on cranioplasty of scalp separation. Methods The clinical data of 67 patients who underwent unilateral frontotemporal cranioplasty from 2014 to 2017 were retrospectively analyzed. According to coagulation method during operation, these patients were divided into two groups, unipolar electric coagulation group (32 cases) and bipolar electric coagulation group (35 cases). The operation time, postoperative intracranial hemorrhage, infection, epilepsy and subcutaneous effusion were compared between two groups. Results The operation time of two groups had no significant difference (P > 0.05). The incidence of intracranial hemorrhage, infection and epilepsy of two groups had no significant differences (P > 0.05). But the incidence of subcutaneous effusion in unipolar electric coagulation group was significantly higher than that in bipolar electric coagulation group: 28.1%(9/32) vs. 5.7%(2/35), P<0.05. Conclusions The use of unipolar electric coagulation during the scalp separation in cranioplasty can reduce operation time in a certain extent, but significantly increase the incidence of postoperative subcutaneous effusion.

Objective To explore the operating methods and its related questions of auricular reconstruction with totally expanded skin in combination with laser hair removal for the treatment of adolescent microtia.Methods From Jan.2013 to Dec.2016,30 adolescent microtia patients were treated with totally expanded skin.At the first stage,the 100 ml kidney-shaped expander was implanted under the skin of mastoid.After expanding capacity of 80 ml,the hair on the expanded skin was depilated once a month with reference to the healthy ear;at the second stage,after expanding capacity of 150 ml,the expander was taken out and the fiber capsule was removed;the tautologous rib cartilage was harvested and the scaffolds were sculptured;the cartilage was implanted and the expanded skin flap was used to cover the frontal surface and back surface of the scaffold;at the third stage,the earlobe transposition,conchal excavation and tragus construction were performed at the same time.Results All the patients were followed up for 3 to 24 months;the results showed 1 case of leakage of expander,4 cases of hematoma,2 case of expanded skin burst,and the complications were treated correctly,all patients were satisfied with the appearance;the color,texture,location,size;and height of ear cranial angle were matched with health ear;there was no obvious scar and auricle subunit structure was clear.Conclusions The laser in combination with the large capacity tissue expander in auricular reconstruction is simple,less trauma and less scarring.