BACKGROUND:To inhibit the expressions of prothrombin activator inhibitor 1 and tissue plasminogen activator is one potential target for the treatment of cerebral infarction. OBJECTIVE:To investigate the expressions of serum inflammatory cytokines in rats with cerebral infarction undergoing bone marrow mesenchymal stem cel transplantation combined with edaravone. METHODS:Sixty Sprague-Dawley rats were enrol ed to prepare models of focal cerebral infarction by middle cerebral artery occlusion, and were randomly divided into four groups. Rats were given intravenous injection of PBS via tail veins for 5 consecutive days as model group, rats were subjected to intravenous injection of 2.0×109/L bone marrow mesenchymal stem cel suspension (1 mL) via tail veins, twice daily for 5 days as stem cel transplantation group, and those were given intravenous injection of 30 mg edaravone combined with intravenous injection of 2.0×109/L bone marrow mesenchymal stem cel suspension (1 mL) via tail veins for 5 days, twice daily, as combined group. RESULTS AND CONCLUSION:Compared with the model group, modified neurologic severity scores were lower, expressions of serum prothrombin activator inhibitor 1 and tumor necrosis factor-αmRNA in the brain decreased, and the infarct area reduced in the stem cel transplantation and combined groups. And the changed levels of above indicators in the combined group were significantly larger than those of the stem cel transplantation group. In conclusion, combination of bone marrow mesenchymal stem cel transplantation with edaravone can promote neural function recovery after cerebral infarction.

Objective To investigate the feasibility of urethral prefabrication with vaginal mucosa in female-to-male transsexuals and to compare the urologic complications after penile reconstruction in female-to-male transsexuals between prefabrication group and forearm group.Methods Prefabrication of the neourethra with tubed vaginal mucosal graft was performed for 22 female-to-male transsexual patients from 2007 to 2016,while radial forearm flap,known as the traditional tube-within-tube method,was used to construct the neourethra for other 31 cases.Results All of the reconstructed penises survived completely and allowed the patients to urinate while standing in the prefabrication group.Phalloplasty by using the vaginal mucosal graft for urethroplasty significantly decreased the donor scar,the duration of the second operation and the incidence rates of urologic strictures,comparing with the forearm group (P＜0.05).Conclusions It is reliable to use the prefabrication of the neourethra with tubed vaginal mucosal graft in phalloplasty female-to-male transsexual patients.

BACKGROUND:Studies have shown that human telomerase reverse transcriptase (hTERT) has the ability to enhance cel proliferation, maintain telomere length, prolonged cel life cultured in vitro. OBJECTIVE:To observe the effect of hTERT gene-modified bone marrow mesechymal stem cel transplantation on neural function recovery of rats with cerebral infarction. METHODS:Rat models of middle cerebral artery occlusion were established and randomized into model group, cel transplantation group and hTERT-modified cel transplantation group, with 20 rats in each group. Rats in the three groups were respectively injected via tail vein with 1 mL PBS, passage 9 bone marrow mesenchymal stem cel suspension (2.5×107/L) and hTERT-modified passage 9 bone marrow mesenchymal stem cel suspension (2.5×107/L), respectively. Modified neurological severity scores were determined before and after transplantation; RT-PCR and western blot assay were used to measure hTERT expression at gene and protein levels; TUNEL method was adopted to detect cel apoptosis in the brain. RESULTS AND CONCLUSION:hTERT-modified bone marrow mesenchymal stem cels had prolonged cel cycle, and with the increase in passage number, the cels showed good growth with no changes in morphology. The expressions of hTERT mRNA and protein were superior in the hTERT-modified cel transplantation group than the cel transplantation group, and there was a significant difference (P < 0.05). Modified neurological severity scores and number of apoptotic cels were decreased significantly in the hTERT-modified cel transplantation group compared with the other two groups (P < 0.05). These findings indicate that hTERT-modified bone marrow mesenchymal stem cels can promote neural functional recovery of rats with cerebral infarction.

BACKGROUND:Numerous clinical studies have confirmed that the microenvironment at a spinal cord injury site can be obviously improved through hyperbaric oxygen therapy; however, what effect does hyperbaric oxygen have on the microenvironment of the injured brain? OBJECTIVE:To investigate the effect of hyperbaric oxygen therapy on nerve regeneration microenvironment and the recovery of rat nerve function after focal cerebral infarction. METHODS:Rat models of focal cerebral infarction were established by occlusion of the middle cerebral artery and subjected to hyperbaric oxygen therapy. Sham group and model group were established as comparison. In the sham group, rat models of focal cerebral infarction were established but did not receive any treatment. Rats in the model group were placed in a hyperbaric oxygen therapy chamber but the pressure and oxygen concentration were not administered. RESULTS AND CONCLUSION:Compared with the model group, the score of rat limb function at 16 days after treatment and the expression of growth associated protein 43 in the rat cerebral infarcted area at postoperative 14 days were significantly increased , but infarct volume at postoperative 24 hours was al significantly decreased in the hyperbaric oxygen therapy group (alP < 0.05). These results confirmed that hyperbaric oxygen therapy can improve nerve regeneration microenvironment and promote the recovery of rat nerve function after focal cerebral infarction.

Objective: To report the method and effect of in situ suturing technique for severe amputation of facial composite tissues. Methods: We in situ sutured severely amputated composite tissues of facial region in 14 cases in emergency by vessels and nerves anastomosis from May 2004 to December 2017. Results: All replanted composite tissues survived in 13 cases. Edge necrosis of auricle occurred in 1 case because of serious contusion and it was cured after dressing changed. The color and appearance of the replanted composite tissues were close to normal after 3 to 48 months′ follow-up. Conclusions In situ suturing technique in emergency is the ideal treatment for severe amputation of composite tissues of facial region.

Objective:Clinical characteristics and diagnosis and treatment process was reported and analyzed of a patient with brucellosis complicated with thyroid abscess, providing reference for the clinical diagnosis of brucellosis complicated with thyroid abscess.Methods:Clinical medical records of a patient with brucellosis complicated with thyroid abscess who was treated at the General Surgery Department of Yanchi County People's Hospital in Wuzhong City, Ningxia Hui Autonomous Region in November 2021 were collected. The clinical manifestations, blood routine, brucella antibodies, thyroid function, bacterial culture, thyroid ultrasound and other examination results, as well as the diagnosis and treatment process, were comprehensively analyzed. Results:The patient was a male, 61 years old, who presented with a neck mass without typical clinical manifestations of brucellosis. Thyroid ultrasound revealed a space occupying lesion, and the preliminary diagnosis was thyroid cystadenoma. Thyroid right lobe and isthmus resection surgery was performed. During the operation, it was found that some of the thyroid glands were tightly adhered to the cervical blood vessels, so the resection surgery was changed to abscess drainage, and the drainage fluid was purulent and bloody. The bacterial culture result of thyroid purulent fluid (intraoperative puncture fluid and postoperative drainage fluid) was brucella lamblia, and the serum brucella test tube agglutination test titer was 1 ∶ 400 (+++). The patient improved and was discharged after local drainage and anti brucella treatment. Follow up for 4 months showed no abnormalities. Conclusions:Brucellosis which begins with a local infection of the thyroid gland is extremely rare, with no characteristic clinical manifestations, and is prone to misdiagnosis. Timely correction of the surgical plan during the treatment process avoids the removal of the patient's thyroid, which has a certain clinical reference value.

Objective:To evaluate the clinical effect of soft tissue defects around wrist joints repaired with forearm distal perforator propeller flap.Methods:The clinical data of 125 patients with defects of popliteal fossa from May 2008 to October 2019 were analyzed retrospectively, in which 71 men and 54 women were included aged from 16 to 87 years old. The sizes of soft tissue defect ranged from 3.5 cm×2.5 cm to 12.0 cm×6.0 cm. Perforator propeller flap was designed and cut to repair the defects according to their location, size and shape. 62 cases of distal radial artery perforator propeller flap, 48 cases of distal ulnar artery perforator propeller flap and 15 cases of distal posterior interosseous artery perforator propeller flap were included, in which the largest was 14.0 cm×6.0 cm and the smallest was 4.0 cm×3.0 cm. The donor sites were covered with free full-thickness skin grafts. Skin swelling rating in early and later stage and the color after 3 to 60 months follow-up were evaluated for the effect.Results:All the flaps survived in 116 patients, though the distal edge of the flaps were necrotic in 9 cases. The incisions in donor and recipient sites were primarily healed. After 3 to 60 months follow-up, we found no deformity of wrist joints and the appearance was good; the color and elasticity were close to normal; the scar was small; two-point discrimination was 6 mm to 9 mm. The outcome was satisfactory in 89 cases, average in 36 cases and without dissatisfactory. Skin swelling rating in early stage was first degree in 80 cases, second degree in 30 cases, third degree in 15 cases; in later stage was first degree in 85 cases, second degree in 35 cases, third degree in 15 cases. Wrist function was assessed in four aspects: palmar flexion, dorsiflexion, radial deviation, and ulnar deviation. Results were excellent in 29 cases, good in 63 cases, average in 33 cases and the good rate was 73.6%. The pain of wrist did not affect the patients’ daily routines and activities.Conclusions:It is reliable to repair soft tissue defects around wrist joints repaired with forearm distal perforator propeller flap which is worthy of clinical use, especially in middle-aged and senile patients.

Objective:To evaluate the clinical effect of transferred direct popliteal cutaneous artery perforator propeller flap for repairing soft tissue defects of the popliteal fossa.Methods:The clinical data of 9 patients with defects of popliteal fossa from June 2013 to June 2019 were analyzed retrospectively, in which including 6 men and 3 women whose ages ranged from 25 to 73 years old. The sizes of soft tissue defects ranged from 6.5 cm×3.5 cm to 17.0 cm×8.5 cm. Perforator propeller flap was designed and cut to repair the defects according to the location, size and shape of defects, in which the largest was 18.0 cm×10.0 cm and the smallest was 7.5 cm×4.5 cm. To evaluate the effect according to survival, infection control, elasticity and color, appearance of the flaps, the scar at the donor site, cutaneous sense, knee joint function, and patients’satisfaction.Results:All the flaps survived. The incisions in donor and recipient site were primary healing. The survival of flaps was good. The appearance, color, and elasticity were close to normal. On the other hand, the scar at the donor site was small after 6 to 60 months follow-up. 2 cases appeared necrosis on edge of distal flaps and were healed after dressing. The efficacy was satisfactory in 8 cases, general in 1 case and without dissatisfactory. The function of knee joint was excellent in 7 cases, good in 1 case, and general in 1 case. Skin swelling rating in early-stage was 1st degree in 6 patients, 2nd degree in 2 patients, 3rd degree in 1 patient; in the later stage was 1st degree in 8 patients, 2nd degree in 1 patient.Conclusions:It is simple, safe and reliable to repair soft tissue defects of popliteal fossa with transferred direct popliteal cutaneous artery perforator propeller flap, which would be an ideal method for repairing soft tissue defects of the popliteal fossa.

Objective:To observe the status of the sinus membrane using fiber optic endoscope during the lateral window approach sinus floor elevation to provide a reference for clinicians when evelvating the sinus mucoperiosteum.Methods:Sixty-six patients (72 sides) who underwent maxillary sinus floor elevation in Beijing Ruicheng Stomatology Hospital from September 2016 to December 2019 were selected, including 40 males and 26 females, aged 26-80 years old [(56.2±11.5) years]. And fiber optic endoscopy was used to observe the maxillary mucoperiosteum during the operation.Results:The status of maxillary sinus mucoperiosteal during lateral window approach sinus floor elevation can be divided into four categories: ① Class Ⅰ, complete periosteal, no damage to mucoperiosteum; ②Class Ⅱ, periosteal injury, unexposed laminae propria; ③Class Ⅲ, periosteal Rupture, exposed lamina propria; ④ Class Ⅳ, mucoperiosteum perforation, rupture of periosteum, lamina propria and epithelial layer. A total of 72 operations were performed, including 18 cases of class I, 28 cases of class Ⅱ, 4 cases of class Ⅲ, and 22 cases of class Ⅳ.Conclusions:The status of maxillary sinus mucoperiosteal during lateral window approach sinus floor elevation can be divided into four categories. Fiberoptic endoscopy as a clinical auxiliary examination method can improve the operator′s control of the status of the maxillary sinus membrane and assist the peeling of the mucosa.

Objective:To evaluate the clinical effect of soft tissue defects around wrist joints repaired with forearm distal perforator propeller flap.Methods:The clinical data of 125 patients with defects of popliteal fossa from May 2008 to October 2019 were analyzed retrospectively, in which 71 men and 54 women were included aged from 16 to 87 years old. The sizes of soft tissue defect ranged from 3.5 cm×2.5 cm to 12.0 cm×6.0 cm. Perforator propeller flap was designed and cut to repair the defects according to their location, size and shape. 62 cases of distal radial artery perforator propeller flap, 48 cases of distal ulnar artery perforator propeller flap and 15 cases of distal posterior interosseous artery perforator propeller flap were included, in which the largest was 14.0 cm×6.0 cm and the smallest was 4.0 cm×3.0 cm. The donor sites were covered with free full-thickness skin grafts. Skin swelling rating in early and later stage and the color after 3 to 60 months follow-up were evaluated for the effect.Results:All the flaps survived in 116 patients, though the distal edge of the flaps were necrotic in 9 cases. The incisions in donor and recipient sites were primarily healed. After 3 to 60 months follow-up, we found no deformity of wrist joints and the appearance was good; the color and elasticity were close to normal; the scar was small; two-point discrimination was 6 mm to 9 mm. The outcome was satisfactory in 89 cases, average in 36 cases and without dissatisfactory. Skin swelling rating in early stage was first degree in 80 cases, second degree in 30 cases, third degree in 15 cases; in later stage was first degree in 85 cases, second degree in 35 cases, third degree in 15 cases. Wrist function was assessed in four aspects: palmar flexion, dorsiflexion, radial deviation, and ulnar deviation. Results were excellent in 29 cases, good in 63 cases, average in 33 cases and the good rate was 73.6%. The pain of wrist did not affect the patients’ daily routines and activities.Conclusions:It is reliable to repair soft tissue defects around wrist joints repaired with forearm distal perforator propeller flap which is worthy of clinical use, especially in middle-aged and senile patients.