Lung transplantation is the only effective treatment for end-stage lung disease. Acute kidney injury is a common complication after lung transplantation, which is related to the occurrence of chronic kidney disease and increased postoperative fatality. The factors and mechanisms affecting the occurrence of acute kidney injury are very complex. Clinically, it has been found that various risk factors during the perioperative period of lung transplantation may lead to the occurrence of acute kidney injury, including preoperative, intraoperative and postoperative factors. Early diagnosis of acute kidney injury after lung transplantation and timely intervention are of great significance to improving patient prognosis. Therefore, this article reviews the definition of acute kidney injury, non-invasive assessment, risk factors, prognosis, and clinical management of acute kidney injury after lung transplantation, aiming to provide a reference for the diagnosis and treatment of acute kidney injury after lung transplantation in clinical practice and to improve the survival rate of lung transplant recipients.

Objective To investigate the impacts of neferine on cellular autophagy and apoptosis,and the silent mating type information regulation 2 homolog-1/5'-AMP activated protein kinase activated protein kinase/mammalian target of rapamycin(SIRT1/AMPK/mTOR)signaling path-way in acute myocardial infarction(AMI)rats.Methods A rat model of AMI was constructed on male SD rats,and then 72 successfully modeled rats were randomly divided into model group,low-and high-dose neferine groups,and high-dose neferine+SIRT1 inhibitor(EX-527)group,with 18 rats in each group.Another 18 normal rats served as the Control group.The area of myocardial infarction,expression of myocardocyte autophagy related proteins,myocardocyte apoptosis,and expression of SIRT1/AMPK/mTOR signaling pathway-related proteins were observed and detec-ted in above groups of rats.Results When compared with the model group,the low-and high-dose neferine groups exhibited milder pathological injuries,higher left ventricular ejection frac-tion,enhanced left ventricular fractional shortening,increased optical densities of microtubule associated protein 1 light chain 3(LC3)Ⅱ and Beclin-1,and elevated protein levels of LC3 Ⅱ/LC3 Ⅰ,Beclin-1,Bcl-2,SIRT1,and p-AMPK/AMPK(P＜0.05),and shorten left ventricular end-systolic diameter,lessened area of myocardial infarction,lower apoptotic rate,and reduced expres-sion of Bax and p-mTOR/mTOR(P＜0.05).While,in comparison to high-dose neferine treat-ment,addition of SIRT1 inhibitor,EX-527 resulted in more severe myocardial injuries,decreased left ventricular ejection fraction and left ventricular fractional shortening values,reduced optical densities of LC3 Ⅱ and Beclin-1,and down-regulated protein levels of LC3 Ⅱ/LC3 Ⅰ,Beclin-1,Bcl-2,SIRT1,and p-AMPK/AMPK(P＜0.05),but increased left ventricular end-systolic diame-ter,larger myocardial infarction area,increased apoptotic rate,and increased expression levels of Bax and p-mTOR/mTOR(P＜0.05).Conclusion Neferine can inhibit apoptosis and promote autophagy in AMI rats and exert myocardial protective effects,which may be related to the activa-tion of the SIRT1/AMPK/mTOR signaling pathway.

Lung transplantation is an effective treatment for various end-stage lung diseases. Optimizing perioperative fluid management can reduce the incidence of postoperative pulmonary edema and improve the prognosis of lung transplant recipients. Excessive fluid administration may lead to pulmonary edema, ischemia-reperfusion injury of the transplant lung, and increased cardiac burden, which can induce heart failure. On the other hand, overly strict fluid restriction may lead to hypovolemia, affecting tissue perfusion and causing organ dysfunction. Therefore, precise regulation of fluid balance is crucial for the postoperative recovery of lung transplant recipients. This article reviews the physiological characteristics of lung transplant recipients, types of infused fluids, fluid therapy regimens, and hemodynamic monitoring, aiming to elucidate the particularities of perioperative fluid management in lung transplantation and provide new ideas and directions for individualized fluid management.

Objective To investigate the impacts of neferine on cellular autophagy and apoptosis,and the silent mating type information regulation 2 homolog-1/5'-AMP activated protein kinase activated protein kinase/mammalian target of rapamycin(SIRT1/AMPK/mTOR)signaling path-way in acute myocardial infarction(AMI)rats.Methods A rat model of AMI was constructed on male SD rats,and then 72 successfully modeled rats were randomly divided into model group,low-and high-dose neferine groups,and high-dose neferine+SIRT1 inhibitor(EX-527)group,with 18 rats in each group.Another 18 normal rats served as the Control group.The area of myocardial infarction,expression of myocardocyte autophagy related proteins,myocardocyte apoptosis,and expression of SIRT1/AMPK/mTOR signaling pathway-related proteins were observed and detec-ted in above groups of rats.Results When compared with the model group,the low-and high-dose neferine groups exhibited milder pathological injuries,higher left ventricular ejection frac-tion,enhanced left ventricular fractional shortening,increased optical densities of microtubule associated protein 1 light chain 3(LC3)Ⅱ and Beclin-1,and elevated protein levels of LC3 Ⅱ/LC3 Ⅰ,Beclin-1,Bcl-2,SIRT1,and p-AMPK/AMPK(P＜0.05),and shorten left ventricular end-systolic diameter,lessened area of myocardial infarction,lower apoptotic rate,and reduced expres-sion of Bax and p-mTOR/mTOR(P＜0.05).While,in comparison to high-dose neferine treat-ment,addition of SIRT1 inhibitor,EX-527 resulted in more severe myocardial injuries,decreased left ventricular ejection fraction and left ventricular fractional shortening values,reduced optical densities of LC3 Ⅱ and Beclin-1,and down-regulated protein levels of LC3 Ⅱ/LC3 Ⅰ,Beclin-1,Bcl-2,SIRT1,and p-AMPK/AMPK(P＜0.05),but increased left ventricular end-systolic diame-ter,larger myocardial infarction area,increased apoptotic rate,and increased expression levels of Bax and p-mTOR/mTOR(P＜0.05).Conclusion Neferine can inhibit apoptosis and promote autophagy in AMI rats and exert myocardial protective effects,which may be related to the activa-tion of the SIRT1/AMPK/mTOR signaling pathway.

Objective To predict the current and future ecological suitability distribution areas of Scutellariae Radix in Shandong Province at present and in the future;To screen the main environmental factors affecting its suitable distribution;To provide a reference for the protection of wild resources and the site selection artificial planting of Scutellariae Radix.Methods Taking Scutellariae Radix as the research object,based on the MaxEnt model,the potential suitable habitats were predicted using 84 distribution points of and 48 environmental factors of Scutellariae Radix,and the main environmental factors affecting the distribution of Scutellariae Radix were explored.Its potential suitable habitat areas were predicted under four greenhouse gas emission concentration scenarios(SSP126,SSP245,SSP370,and SSP585)for the years 2021-2040,2041-2060,2061-2080 and 2081-2100.Results The MaxEnt model was optimized through feature combination and regularization constant parameters,and its predictive ability was good(AUC value of 0.871).The primary driving environmental factors affecting its distribution were the maximum temperature in the warmest month(bio_05),soil gravel content(cf05)and altitude(elev).Under the current climate conditions,Scutellariae Radix is mainly distributed in the hilly areas of central and southern Shandong and some areas of in the hilly areas of Jiaodong.Under the future climate conditions of SSP126,SSP245,SSP370 and SSP585,the areas of suitable habitat of Scutellariae Radix in Shandong will show a decreasing trend.Except for the SSP126,the medium and high adaptation areas of Scutellariae Radix will disappear in the other three modes.Conclusion The results of this study can provide an important reference for the protection,rational utilization and planting layout of Scutellariae Radix in Shandong Province.

Objective To predict the current and future ecological suitability distribution areas of Scutellariae Radix in Shandong Province at present and in the future;To screen the main environmental factors affecting its suitable distribution;To provide a reference for the protection of wild resources and the site selection artificial planting of Scutellariae Radix.Methods Taking Scutellariae Radix as the research object,based on the MaxEnt model,the potential suitable habitats were predicted using 84 distribution points of and 48 environmental factors of Scutellariae Radix,and the main environmental factors affecting the distribution of Scutellariae Radix were explored.Its potential suitable habitat areas were predicted under four greenhouse gas emission concentration scenarios(SSP126,SSP245,SSP370,and SSP585)for the years 2021-2040,2041-2060,2061-2080 and 2081-2100.Results The MaxEnt model was optimized through feature combination and regularization constant parameters,and its predictive ability was good(AUC value of 0.871).The primary driving environmental factors affecting its distribution were the maximum temperature in the warmest month(bio_05),soil gravel content(cf05)and altitude(elev).Under the current climate conditions,Scutellariae Radix is mainly distributed in the hilly areas of central and southern Shandong and some areas of in the hilly areas of Jiaodong.Under the future climate conditions of SSP126,SSP245,SSP370 and SSP585,the areas of suitable habitat of Scutellariae Radix in Shandong will show a decreasing trend.Except for the SSP126,the medium and high adaptation areas of Scutellariae Radix will disappear in the other three modes.Conclusion The results of this study can provide an important reference for the protection,rational utilization and planting layout of Scutellariae Radix in Shandong Province.

Humans ; Aged ; Lung Diseases ; Pneumonia/drug therapy* ; Adrenal Cortex Hormones/therapeutic use* ; Pulmonary Disease, Chronic Obstructive/drug therapy* ; Administration, Inhalation ; Community-Acquired Infections/drug therapy*

Objective:To investigate the impact of neferine(NEF)on the blood-brain barrier in ischemic stroke(IS)rats by regulating the CC chemokine ligand 2(CCL2)-CC chemokine receptor 2(CCR2)signal pathway.Methods:SD rats were randomly divided into model group,low-dose NEF group(NEF-L group,25 mg/kg NEF),high-dose NEF group(NEF-H group,50 mg/kg NEF),and high-dose NEF+CCR2 antagonist group(NEF-H+RS102895 group,50 mg/kg NEF+10 mg/kg RS102895),sham opera-tion group(Sham group),with 15 rats in each group.The neurological function scores of rats in each group were compared.The perme-ability of blood-brain barrier of rats in each group was evaluated by Evans blue(EB)permeation method.The water content of brain tis-sue of rats in each group was determined by dry and wet weight method.The expression levels of CCL2 and CCR2 mRNA in rat brain tissue were measured by real-time fluorescence quantitative PCR(RT-qPCR).The expression levels of CCL2,CCR2,ZO-1 and Clau-din-5 proteins in rat brain tissue were detected by Western blot.Results:Compared with Sham group,the neural function score,EB content,water content,the expression levels of CCL2,CCR2 mRNA and protein in the right brain tissue of the model group were obvi-ously higher(P<0.05),the expression levels of ZO-1 and Claudin-5 were lower(P<0.05).Compared with the model group,the neuro-logical function score,water content,EB content,the expression levels of CCL2,CCR2 mRNA and protein in the right brain tissue of rats in the NEF-H group were obviously lower(P<0.05),the expression levels of ZO-1 and Claudin-5 were obviously higher(P<0.05).RS102895 enhanced the protective effect of NEF on the blood-brain barrier in IS rats.Conclusion:NEF may protect the blood-brain barrier of IS rats by inhibiting CCL2-CCR2 signal pathway.

Objective:To analyze the clinical characteristics and management strategies of the patients who were injured in winter snow sports in parts of Qingdao in order to provide useful information for "300 million people participating in ice and snow sports" .Methods:A retrospective study was conducted to analyze the data of 128 patients who had been admitted to Department of Orthopaedics, Qingdao Central Hospital for skiing injuries from November 2019 to March 2021. The gender, type, location and cause of injury, and treatment method of the patients were statistically analyzed.Results:Of the 128 patients, 72 were males and 56 females with an age of (32.0±12.1) years. Single injury accounted for 97.66% (125/128) while multiple injuries 2.34% (3/128). 46 injuries (35.11%, 46/131) due to single board skiing occurred in 44 patients (34.38%, 44/128); 85 injuries (64.89%, 85/131) due to double board skiing occurred in 84 cases (65.62%, 84/128). As for injury types, there were 44 cases (34.38%, 44/128) of soft tissue injury and 84 fractures (65.62%, 84/128). The top 3 injured locations were the lower leg (24.43%, 32/131), the peri-wrist part (18.32%, 24/131), and the peri-knee part (15.27%, 20/131). The most vulnerable location was, respectively, the wrist joint (26.09%, 12/46) in single board skiing and the calf (31.76%, 27/85) in double board skiing. The top three causes of injury were accidental fall (39.06%, 50/128), being struck by someone or emergency evacuation (14.84%, 19/128), and mismatched equipment models (12.50%, 16/128). The proportion of skiing beginners was as high as 76.56% (98/128). Surgical treatment was performed in 49 cases (38.28%, 49/128), and conservative treatment in 79 cases (61.72%, 79/128).Conclusions:The clinical characteristics of the patients who were injured in winter snow sports in parts of Qingdao are high proportions of skiing beginners, falls and fractures. Special attention needs to be paid to wrist protection in single board skiing and checking the ski disengagement device before double board skiing. Most patients may need only conservative treatment because although a number of patients required surgical treatment, severe multiple injuries were rare.

Algae are a large group of photosynthetic organisms responsible for approximately half of the earth's total photosynthesis. In addition to their fundamental ecological roles as oxygen producers and as the food base for almost all aquatic life, algae are also a rich source of bioactive natural products, including several clinical drugs. Cytochrome P450 enzymes (P450s) are a superfamily of biocatalysts that are extensively involved in natural product biosynthesis by mediating various types of reactions. In the post-genome era, a growing number of P450 genes have been discovered from algae, indicating their important roles in algal life-cycle. However, the functional studies of algal P450s remain limited. Benefitting from the recent technical advances in algae cultivation and genetic manipulation, the researches on P450s in algal natural product biosynthesis have been approaching to a new stage. Moreover, some photoautotrophic algae have been developed into "photo-bioreactors" for heterologous P450s to produce high-value added pharmaceuticals and chemicals in a carbon-neutral or carbon-negative manner. Here, we comprehensively review these advances of P450 studies in algae from 2000 to 2021.