After peripheral nerve injury, nerve regeneration is slow, and skeletal muscles gradually atrophy due to long-term lack of nerve innervation, nutrient deficiency, and lack of stimulation of nerve electrical stimulation. Neuregulin-1 (NRG-1) and epidermal growth factor receptor (ErbB) can activate multiple complex intracellular signaling networks to affect the nerves and muscles. This article reviews the regulatory effect of NRG-1/ErbB signaling pathway on peripheral nerves, muscles, and neuromuscular junctions, aiming to provide references for finding new therapeutic target for denervated muscle atrophy.

Osteoporosis is highly prevalent and a leading cause of disability and death in the elderly. Bone metabolism homeostasis is maintained through the coupling of osteoblasts and osteoclasts. While current treatments can reduce bone loss, they may cause side effects such as gastrointestinal discomfort. Neuroboneology has gained attention as the nervous system, both directly and indirectly, influences bone metabolism, remodeling, and formation. Studies have also highlighted the role of peripheral nerves and blood vessels in bone health. Neuropeptides, small signaling molecules produced by neurons, regulate vascular function and bone homeostasis. These neuropeptides may offer new insights into the "peripheral nerve-angiogenesis-bone homeostasis" regulation theory. This study explores the impact of peripheral nerves on osteoporosis through neuropeptides.

Osteoporosis is highly prevalent and a leading cause of disability and death in the elderly. Bone metabolism homeostasis is maintained through the coupling of osteoblasts and osteoclasts. While current treatments can reduce bone loss, they may cause side effects such as gastrointestinal discomfort. Neuroboneology has gained attention as the nervous system, both directly and indirectly, influences bone metabolism, remodeling, and formation. Studies have also highlighted the role of peripheral nerves and blood vessels in bone health. Neuropeptides, small signaling molecules produced by neurons, regulate vascular function and bone homeostasis. These neuropeptides may offer new insights into the "peripheral nerve-angiogenesis-bone homeostasis" regulation theory. This study explores the impact of peripheral nerves on osteoporosis through neuropeptides.

After peripheral nerve injury, nerve regeneration is slow, and skeletal muscles gradually atrophy due to long-term lack of nerve innervation, nutrient deficiency, and lack of stimulation of nerve electrical stimulation. Neuregulin-1 (NRG-1) and epidermal growth factor receptor (ErbB) can activate multiple complex intracellular signaling networks to affect the nerves and muscles. This article reviews the regulatory effect of NRG-1/ErbB signaling pathway on peripheral nerves, muscles, and neuromuscular junctions, aiming to provide references for finding new therapeutic target for denervated muscle atrophy.

Osteoarthritis （OA） is characterized by articular cartilage degeneration， synovial hyperplasia， hyperosteogeny， and narrowing of joint space， which can be caused by trauma， inflammation， and other factors. With the increasing global population aging， the incidence of OA is rising year by year， making it a major public health problem that urgently needs to be addressed. Exploring effective treatment schemes is particularly important. The pathogenesis of OA is complex， including oxidative stress， autophagy， and apoptosis. Recent studies have found that ferroptosis， a new type of cell death， is also an important pathogenic factor in OA， characterized by a series of complex changes such as iron ion accumulation， glutathione （GSH） depletion， and mitochondrial dysfunction. Research shows that inhibiting ferroptosis in chondrocytes can promote chondrocyte proliferation， delay extracellular matrix （ECM） degradation， and reduce synovial hyperplasia and inflammation. Targeting ferroptosis is a new direction in the treatment of OA. OA treatment includes intra-articular injections of steroids or hyaluronic acid and artificial joint replacement， but there are limitations. Traditional Chinese medicine （TCM） has been widely used in the treatment of various diseases because of its low cost， low drug resistance， and few side effects. Cell and animal experiments have further confirmed that TCM can intervene in the treatment of OA with ferroptosis from multiple targets， multiple levels， and aspects， but the mechanism of its treatment of OA based on ferroptosis has not been clarified. This paper discussed iron metabolism， lipid peroxidation， cysteine/glutamate transporter system Xc^- （system Xc^-）/GSH/glutathione peroxidase 4 （GPX4） pathway， nicotinamide adenine dinucleotide phosphate（NADPH）/ferroptosis suppressor protein 1 （FSP1）/coenzyme Q₁₀ （CoQ₁₀） pathway， tumor protein p53 in OA， and related molecular targets of Chinese medicine monomers and compounds on ferroptosis inhibition. Their potential therapeutic mechanisms were further analyzed to provide theoretical guidance for the treatment of OA by TCM and useful reference for the research and development of related drugs.

【Objective】 To evaluate the safety and efficacy of long-term indwelling of Allium ureteral stent in the treatment of ureteral stricture. 【Methods】 The clinical data of patients who underwent endoscopic Allium ureteral stent implantation for ureteral stricture in our hospital during Aug.2020 and Dec.2022 were retrospectively analyzed, and the surgical conditions and adverse events were recorded. The data of serum creatinine, blood urea nitrogen, glomerular filtration rate (GFR) and renal pelvis width under ultrasound were compared before surgery and 1, 3, 6 and 12 months after surgery. 【Results】 A total of 52 patients with ureteral stricture of 1.1 (0.7, 2.0)cm were included. All operations were successful. The operation time was 82.5 (70, 114)min, intraoperative blood loss 20 (10, 20)mL, and postoperative hospitalization stay 1 (1, 2) day. During the follow-up of (13.2±7.8) months, 14 patients had stent displacement, 5 had stone obstruction of stent tubes, 7 had occasional hematuria after movement, 9 had intermittent lumbar and abdominal pain, and 1 had recurrent urinary tract infection. The serum creatinine, blood urea nitrogen and renal pelvis width of 1 month, 3, 6 and 12 months after surgery were significantly decreased, while GFR was significantly increased. 【Conclusion】 Long-term indwelling of Allium ureteral stent is effective in the treatment of ureteral stricture, but the high incidence of stent displacement should arouse attention.

ObjectiveTo observe the effect of Jiaji electroacupuncture combined with neurodynamic mobilization on nerve conduction velocity and the expression of Netrin-1, Slit2 and Rho GTPases after sciatic nerve injury in rabbits. MethodsA total of 216 New Zealand rabbits were randomly divided into nomal control group (NC), vector virus group (VV), Jiaji electroacupuncture combined with neurodynamic mobilization group (EN), Netrin-1 group (N1), Slit2 group (S2) and N1+S2 group. Each group was divided into three subgroups according to the postoperative treatment time points (one, two and four weeks), with twelve rabbits in each subgroup. The rabbit model of Sunderland Ⅲ degree injury of the left sciatic nerve was established by clamping method. There was no intervention in NC, and virus was injected during the preparation of the model. Jiaji electroacupuncture and neurodynamic mobilization were administrated three days after operation in EN group. Nerve conduction velocity of sciatic nerve was measured with electromyography. The sciatic nerve and L_4-6 spinal cords were obtained, the expression of Netrin-1 and Slit2 mRNA were detected real-time quantitative polymerase chain reaction and immunofluorescence double staining, and the expression of Rac1, Cdc42 and RhoA protein were observed via Western blotting. ResultsOne, two and four weeks after modeling, the nerve conduction velocity was more in EN group and N1+S2 group than in N1 group and S2 group (P < 0.05); the Netrin-1 and Slit2 mRNA expression were higher in the EN group and N1+S2 group than in the VV group and NC group (P < 0.05); the protein expression of Rac1 and Cdc42 were higher, and the protein expression of RhoA was lower in EN group and N1+S2 group than in N1 group, S2 group and VV group (P < 0.05). ConclusionJiaji electroacupuncture combined with nerve mobilization may promote the axonal regeneration by regulating the expression of Netrin-1 and Slit2, adjusting the imbalance of Rho GTPases enzyme system, and then promoting cytoskeleton reorganization and peripheral nerve regeneration after injury.

Objective: To explore early diagnosis, surgical intervention and efficacy for blunt cardiac injury. Methods: 43 patients with blunt cardiac injury treated operatively were studied retrospectively in respect of sex, age, cause of injury, preoperative diagnosis, operative time from injury, surgical procedures, and therapeutic efficacy. The study lasted for 15 years between September 2003 and August 2018. The main cause of injury is road traffic accident with a rate of 48.8%(21/43); and steering wheel injury accounted for 71.4%(15/21). Preoperative diagnosis was based on computer scaning, echocardiography in 26 cases. In remaining 17, initial judgement of cardiac wound was done because of obvious cardiac tamponade, or massive hemothorax with shock; and was proved during emergent thoracotomy. Surgical intervention was started within one hour in cases of 27.9%(12/43). Main procedures included pericardial decompression, clear off hemopericardium, and cardiorrhaphy in 36 cases; relief of pericardial herniation with strangulation of the heart in 3 cases, and repair of diaphragmatic hernia involving pericardium in 4 cases. Of all 43 cases, 7 cases underwent Emergent Department Thoracotomy(EDT) with a resuscitative rate of 42.9%(3/7). Results: Overall mortality rate was 32.6%(14/43); 4 cases died at EDT, 5 cases intraoperatively, and 5 cases postoperatively. The cause of deaths was directly related to BCI in 9 cases(associated with transected aorta in 1 case); and associated injuries in 5 cases including liver trauma(3 cases), brain trauma(1 case), and cervical spinal trauma(1 case). In 4 of 29 survivors, intracardiac injury was proved by echocardiography postoperatively, including mitral valve in 2 cases, tricuspid in 1 case, and ventricular septum in 1 case. Of these 4 cases 2 received valvuloplasty 2 weeks and 3 months after initial operation respectively; and other 2 restored spontaneously which were ensured by echocardiography. Postoperative complications included atelectasis in 3 and infectious endocarditis in 1 respectively. They were cured . All survivors were followed up from 6 to 36 months, with a normal cardiac function and healthy condition. Conclusion Early diagnosis and emergent thoracotomy in time are essential to improve survival rate. Preoperative massive transfusion and pericardiocentesis are not advocated. If it is necessary, EDT should be exercised decidedly.

Objective: To explore the early diagnosis, therapeutic methods and efficacy for blunt cardiac injury (BCI). Methods: All BCI patients from September 2003 to August 2018 were studied retrospectively in respect of sex, age, cause of injury, diagnostic methods, therapeutic procedures, and outcome. The patients were divided into two groups: nonoperative group (n=305) and operative group (n=43). The two groups were compared and analyzed. Results: Totally 348 BCI patients accounted for 18.3% of 1 903 patients with blunt thoracic injury (BTI), and the mortality rate was 10.1%. The main cause of injury was traffic accident with an incidence of 48.3%. The diagnostic methods included electrocardiogram (ECG), enzymes and troponin I, echocardiography, and CT scanning, or confirmed by emergency thoracatomy. In the nonoperative group, patients were mainly myocardial contusion, with a mortality rate of 6.9%. In the operative group, patients were mainly cardiac rupture and pericardial hernia, and the mortality was 32.6%. The incidence of negative ECG between the two groups was not significantly different (16.7% vs 11.6%, P>0.05). The incidence of shock and mortality in the operative group were significantly higher than those in the the nonoperative group (P<0.01). The number of death directly resulted from BCI in the operative group was greater than that in the nonoperative group (P<0.05). Conclusions For BTI patients, BCI must be highly suspected, and necessary examinations should be given. To manage myocardial contusion without surgery, it is necessary to protect the heart, alleviate edema of myocardium, and control arrhythmia with drugs. To deal with those patients requiring operation, early recognition and expeditious thoracotomy are essential.

Objective To study the early diagnosis,surgical treatment options,prevention and management of complications in patients with duodenal trauma.Methods All patients with duodenal trauma treated operatively from January 2009 to December 2018 were studied retrospectively.Factors including sex,age,cause of injury,AAST grading,diagnostic method,operative procedure,therapeutic effectiveness,complications,and factors related to death were analyzed.The "double-tube gastrostomy" technique consisting of duodenal decompression and jejunal feeding as recommend by the authors were used in severe cases.Results Blunt trauma occurred in 66 of 86 patients (76.7％).The diagnosis of duodenal trauma was made preoperatively based on abdominal signs,peritoneocentesis,and imaging in 32 patients (37.2％).The remaining 54 patients (62.8％),with duodenal injury was detected during emergency laparotomy.All the 86 patients underwent surgical intervention which included simple suturing,pedicled jejunal flap,segmental resection and anastomosis,Roux-en-Y duodenojejunostomy,diverticularization,and Whipple's procedure using the principle of Damage Control Surgery (DCS).Postoperative morbidity occurred in 15 patients (17.4％).There was a high incidence of duodenal (or pancreatic,biliary) fistulae.The overall mortality rate was 12.8％ (in 11 patients).The causes of deaths were mainly massive bleeding and poly-trauma.Conclusions To decrease morbidity and mortality rates,early diagnosis and surgical intervention were critical.The choice of surgical treatment procedures should be based on the duodenal trauma grading and whether there were associated injuries.For patients with a combined pancreaticoduodenal trauma,DCS is a wise procedure to adopt.The double-tube gastrostomy technique as recommended by the authors is beneficial to severe cases in decreasing the incidences of postoperative duodenal and jejunal obstruction.