This study was aimed to carry out pharmacological research on the hemostatic activity and mechanism of Yi medicine Ma-Bu (Paris polyphylla Smith var stenophylla Franch.). One kind of C27 steroidal saponin from P. polyphylla Smith var stenophylla Franch. was isolated and identified as Paris saponin H (PSH). The effect of PSH on the index of bleeding time (BT), prothrombin time (PT), activated partial thromboplastin time (APTT) and fibrinogen (FIB) of mice were measured. The results showed that PSH have significant hemostatic activity by shortening BT. The effect of PSH on shortening PT and APTT of mouse was not significant. However, the FIB was enhanced significantly after treatment with PSH. It was concluded that PSH had no significant promoting effect on the extrinsic coagulation pathway (ECP) or the intrinsic coagulation pathway (ICP). The enhancement of FIB may be a pathway for the effect of hemostatic activity by PSH.

Objective To investigate expression of glycogen synthase kinase(GSK)-3? and phosphorylation GSK-3? (p-GSK-3?) in the anterior temporal neocortex in patients with refractory epilepsy(RE). Methods Expression of GSK-3? and p-GSK-3? were detected by RT-PCR, FQ-PCR, Western Blot and immunohistochemistry in the anterior temporal cortices of 36 RE cases. 8 patients without RE had been used as the controls. Results Compared with control group,the expression of GSK-3? mRNA and protein were significant higher(allP

Objective To study the values of quantitative assessment of extraocular muscles in diagnosing the thyroid associated ophthalmopathy(TAO).Methods The maximum section area,short and long diameters of extraocular muscles on orbital coronal CT were measured and the value of R was calculated in 50 healthy persons and 50 patients with TAO.Results The maximum section areas of 228 extraocular muscles in 50 patients with TAO increased,of them,inferior rectus(30.3%) and mediate rectus muscle(23.2%) were common,followed by superior rectus,lateral rectus and superior oblique muscle.Their maximum section areas(70.21 mm2,56.93 mm2,64.06 mm2,58.51 mm2,20.65 mm2,respectively) and the values of R(0.61,0.55,0.61,0.50,0.52,respectively) were larger than that in healthy group(27.72 mm2,27.07 mm2,26.93 mm2,36.74 mm2,9.42 mm2 respectively in maximum section areas) and(0.41,0.35,0.60,0.34,0.44 in the values of R,respectively).There were statistical significant differents between them.Conclusion The quantitative coronal CT measurement,especially the values of R can assess enlargement of extraocular muscles accurately,which may be helpful in diagnosis of TAO.

OBJECTIVE:To evaluate the negative effects of continuous drought on the breeding, production and sales of Panax notoginseng, and to search countermeasures. METHODS:Field survey, literature review and key character interviews were carried out in stricken production area. Mechanism of negative effects and its future influence were analyzed preliminarily. RESULTS:Southwest China suffered from 1-in-100 chance serious drought, and noted production area of P. notoginseng located serious disaster area. The development of P. notoginseng industry was destroyed by continuous drought. CONCLUSION:The basic strategies of P. notoginseng industry reconstruction should be formulated to provide reference for sustainable development strategies of TCM industry suffering from drought in Southwest China.

Objective To investigate the clinical therapeutic effect of Xuebijing injection for treatment of patients with ventilator-associated pneumonia (VAP).Methods A prospective study was conducted. Forty-eight patients with confirmed diagnosis of VAP requiring mechanical ventilation admitted into intensive care unit (ICU) of Hubei Provincial Hospital of Integrated Traditional Chinese and Western Medicine between May 2013 and September 2014 were enrolled. The patients were randomly divided into observation group (26 cases) and control group (22 cases) by random number table. All patients in both groups received western conventional treatment, and the patients in observation group were treated additionally with 50 mL Xuebijing injection intravenous drip twice a day, and control group received only routine western medicine, the therapeutic course in both groups being 7 days. The changes of white blood cell count (WBC), serum procalcitonin (PCT) levels and the clinical pulmonary infection score (CPIS) were observed, and the clinical therapeutic effect and 28-day prognosis were analyzed in both groups.Results After treatment for 7 days, the WBC, PCT levels and CPIS score were decreased compared with those before treatment in the two groups, and the degree of descent in observation group was more significant than that in the control group [WBC (×109/L): 9.16±1.62 vs. 12.03±2.34, PCT (μg/L): 0.17±0.04 vs. 0.28±0.69, CPIS score: 3.31±0.97 vs. 4.23±1.15, allP < 0.05]. The effective rate of observation group was higher than that of the control group [84.6% (22/26) vs. 54.5% (12/22), P < 0.05], while the 28-day fatality rate in the observation group was lower than that of control group [11.5% (3/26) vs. 36.4% (8/22),P < 0.05].Conclusion The clinical therapeutic effect is good when patients with VAP is treated with addition of Xuebijing injection on the basis of conventional western medicine therapy, as the injection can improve the therapeutic efficacy and reduce the fatality rate.

Objective:To explore the clinical effect of ALTF transfer with cross-limb bridged "Y" shape vascular anastomosis in repair of complex soft tissue defects in calf.Methods:From August 2010 to September 2020, 33 patients(23 males and 10 females) with complex traumatic soft tissue defects in calf were treated. Preoperative angiography and intraoperative exploration confirmed that there was only 1 main vessel remained in the affected calf or the wound surface and the vessel could not be anastomosed with the vascular pedicle of the ALTF. The size of flap were 16 cm × 8 cm to 25 cm × 18 cm. Two patients received bilobed ALTFs. A "Y" shape anastomosis between the artery of ALTF vascular pedicle and the posterior tibial artery of the contralateral lower limbs was made in all 33 patients to establish the blood supply to the transferred free ALTF. The "Y" shape cross-limb bridged blood vessels at the proximal end of the vascular pedicle artery of the flap were embedded at both ends of the cut-off superior ankle posterior tibial artery of the contralateral lower limb. The vein of the flap was anastomosed with the saphenous vein that associates with the posterior tibial artery. The surface of the suspended blood vessel "bridge" was wrapped with a free skin craft, and the lower limbs were fixed in a straight and parallel position with an external fixation frame. The perfused area of the flap was directly sutured or covered with a free skin craft. The vascular bridge was kept for 3 to 6 weeks before being separated. Outpatient follow-up after discharge.Results:All the patients were entered the postoperative follow-up was 13 months to 7 years, in an average of 25 months. Among the 33 flaps, 31 survived completely, except 1 had necrosis and the other 1 had partial necrosis at the distal end of the flap. The flaps received good blood supply, hence with soft texture and satisfactory appearance. Doppler or DSA was performed after the surgery on the posterior tibial artery of the healthy limb, and the vascular pulsation and patency were found normal. Donor sites for the free skin graft healed well.Conclusion:The ALTF transfer with cross-limb bridged "Y" vascular anastomosis is one of the effective techniques and it was employed in the repair of complex defects of calf soft tissue. It solved the tissue that there was only 1 main vessel or even without a suitable vessel could be anastomosed with the pedicle of the flap.

Objective:To investigate the efficacy of 2 algorithm models, cascade channel model and combined wavelet with linear prediction coefficient(LPC), on extracting the hypernasal format parameters of cleft palate speech.Methods:The voice of 859 patients, 421 male and 438 female with average age of 12.1 years, were collected from the speech data of the Department of Cleft Lip and Palate Surgery of West China Hospital of Stomatology of Sichuan University. The patients were classified into 216 normal speech patients, 220 low-level hypernasal patients, 213 moderate-level hypernasal patients and 210 high-level hypernasal patients. 62 707 speech samples were collected. Cascade channel model and combined wavelet with LPC were used to combine the K-nearest neighbor classifier respectively to distinguish the hypernasal level, and the result were compared with the golden standard, i. e. the speech evaluation result. The result were analyzed statistically with chi-square test.Results:Compared to the cascaded channel model, levels combined wavelet with LPC achieved significantly higher accuracy of all hypernasal levels ( P<0.05). Among all different mis-classifications, the most common error of the 2 models was misjudging normal speech patients as low-level hypernasal patients (for cascaded channel model: 41/216, 18.98%; for combined wavelet with LPC: 32/216, 14.81%). Conclusions:Two algorithm models based on formant parameters for hypernasal recognition of cleft palate was established. Combined wavelet with LPC both realized the automatic identification of hypernasal level in Mandarin Chinese. The average classification accuracy of hypernasal level evaluation by using combined wavelet with LPC is higher.

Objective:To investigate the efficacy of 2 algorithm models, cascade channel model and combined wavelet with linear prediction coefficient(LPC), on extracting the hypernasal format parameters of cleft palate speech.Methods:The voice of 859 patients, 421 male and 438 female with average age of 12.1 years, were collected from the speech data of the Department of Cleft Lip and Palate Surgery of West China Hospital of Stomatology of Sichuan University. The patients were classified into 216 normal speech patients, 220 low-level hypernasal patients, 213 moderate-level hypernasal patients and 210 high-level hypernasal patients. 62 707 speech samples were collected. Cascade channel model and combined wavelet with LPC were used to combine the K-nearest neighbor classifier respectively to distinguish the hypernasal level, and the result were compared with the golden standard, i. e. the speech evaluation result. The result were analyzed statistically with chi-square test.Results:Compared to the cascaded channel model, levels combined wavelet with LPC achieved significantly higher accuracy of all hypernasal levels ( P<0.05). Among all different mis-classifications, the most common error of the 2 models was misjudging normal speech patients as low-level hypernasal patients (for cascaded channel model: 41/216, 18.98%; for combined wavelet with LPC: 32/216, 14.81%). Conclusions:Two algorithm models based on formant parameters for hypernasal recognition of cleft palate was established. Combined wavelet with LPC both realized the automatic identification of hypernasal level in Mandarin Chinese. The average classification accuracy of hypernasal level evaluation by using combined wavelet with LPC is higher.

Objective:To investigate the clinical effect of free flap transfer with anastomosis of anterior interosseous artery and accompanying veins as the recipient vessels in reconstruction of forearm defects.Methods:A retrospective study was conducted on 5 patients who received free flaps transfers with anastomoses of anterior interosseous artery and accompanying veins in reconstruction of forearm defects with exposed bone and tendon in the Department of Orthopaedics of the First Affiliated Hospital of Anhui Medical University between July 2022 and November 2023. All patients were males, aged 31 to 54 years old with an average age of 41.8 years old. Two patients had defects of dorsal ulnar forearm, 2 of distal forearm and 1 of radial palmar forearm. The defected areas after debridement sized 11.0 cm×4.5 cm-20.0 cm×6.0 cm. Free anterolateral thigh perforator flaps (ALTPF), sized 13.0 cm×6.0 cm-22.0 cm×7.0 cm, were used in 4 patients to reconstruct the forearm defects. A free superficial circumflex iliac artery perforator flap was used in 1 patient with the flap sized at 12.0 cm×5.5 cm. All donor sites were directly sutured. Scheduled postoperative follow up was carried out to evaluate the blood supply to the flaps, texture, appearance, fracture healing and the function of the affected limb, as well as the flap sensation according to the criteria for sensory function of British Medical Research Council (BMRC).Results:All 5 patients had received 4 to 16 (mean 8.8) months of follow-up. All flaps survived completely without necrosis or infection. All flaps were good in colour and texture. The blood supply to hands was good, without a symptoms of coldness and fear of cold of hand. At the final follow-up review, sensation of flaps was assessed according to the criteria for sensory function of BMRC and the sensation of the flaps had recovered to S 2~S 3+. The appearance of flaps was good. Conclusion:Free flap with the anterior interosseous artery and accompanying veins as the recipient vessels in the treatment of forearm defects can achieve satisfactory clinical effect, however, further clinical studies are required.

Objective:To analyze the differential expression of silent information regulator transcript-1 (SIRT1) in tissues and cells of nasopharyngeal carcinoma (NPC), to explore the effects of SIRT1 on the proliferation and migration of NPC cells, as well as the effects on and mechanisms of lipid metabolism in NPC cells.Methods:Experimental subjects: In this study, tissue specimens were obtained from patients who visited the Department of Otolaryngology and performed nasopharyngeal tissue biopsy in the Affiliated Hospital of Nantong University from 2019 to 2020. Among them, 6 cases were male, 6 cases were female, age range: 27-72 years old, including 7 cases of NPC diagnosed by pathology and 5 cases of normal nasopharyngeal mucosa. Experimental methods and outcome measures: Western Blot and quantitative real time polymerase chain reaction (qRT-PCR) were used to detect the protein and mRNA levels of SIRT1. CNE2 cell line was selected for subsequent experiments. Cell viability and migratory ability were evaluated by CCK8, wound healing and Transwell assays respectively. Animal xenograft tumor model was used to explore the role of SIRT1 inhibitor Ex527 on tumor growth in nude mice. Oil red and Bodipy were used to stain intracellular lipids. For the mechanical investigation, the interactions between SIRT1 and hypoxia inducible factor-1α (HIF-1α) were analyzed by immunoprecipitation (IP) and chromatin immunoprecipitation (ChIP). Finally, statistical analysis was performed by SPSS 26.0 software, P<0.05 was considered statistically significant. Results:The levels of SIRT1 protein (1.005±0.168) and mRNA (5.829±2.395) in NPC tissues were higher than those in normal nasopharyngeal mucosa (0.181±0.042,1.995±1.605). Differences were statistically significant ( t values were 6.438 and 2.759, both P<0.05). The mRNA and protein levels of CNE1, CNE2, 5-8F and 6-10B cell lines were also higher than those in normal nasopharynx epithelial cell line NP69. Besides, overexpression of SIRT1 correlated with the proliferation and migration of NPC cells. The tumorigenesis ability of nude mice in the Ex527 group was lower than that in the control group. The low SIRT1 expression reduced the protein level of the key enzymes of liposynthesis in NPC cells, improved the expression of lipolysis enzymes, while HIF-1α overexpression promoted lipid synthesis enzymes in NPC cells. SIRT1 inhibited HIF-1α transcription by enhancing deacetylation levels. The binding ability of HIF-1α to SIRT1 promoter regions decreased when NPC cells were hypoxic. Conclusions:SIRT1 promotes the proliferation, migration and lipid metabolism of nasopharyngeal carcinoma cells, which might be expected to provide new theoretical basis for prognosis judgment and gene therapy.