Health service is an important part of the integrated development of the Yangtze River Delta. Taking the cooperation practice between Shanghai Tenth People′s Hospital and Suzhou Yinshanhu Hospital as an example, this article introduced the multi-agent cooperation mode of the loose medical alliance including the government, urban hospitals and cross provincial grassroots medical institutions. Among them, the local government provided policy, fund guarantee and guidance, the urban hospital exported management ideas, medicine talents and technologies, and the primary hospital conducted dual training by inviting in and going out to achieve double growth. Through the high gap cooperation between tertiary hospital and primary hospital, Yinshanhu hospital had been comprehensively developed. The loose medical alliance with multi subject coordination and cross region could give full play to the advantages of the loose healthcare alliance mode, achieve multi-win, and have reference significance for promoting the regional integration of medical and health services in the Yangtze River Delta.

Objective:To explore the effects of Freund′s complete adjuvant on autophagy protein expression in rat tuberculous wound model.Methods:The experimental research method was used. In the first batch, twelve 6-week-old male Sprague-Dawley (SD) rats were sensitized by subcutaneous injection of Freund′s complete adjuvant into the hips. Three weeks later, the rats were infected with attenuated Bacille Calmette-Guérin (BCG) subcutaneously on both sides of the back spine. After establishing the tuberculosis wound rat model, according to the random number table (the same grouping method below), the rats were divided into 8 d infection group, 15 d infection group, 32 d infection group, and 43 d infection group, with 3 rats in each group, with continuous normal feeding to the corresponding days after infection. In the second batch, twenty-three 6-week-old male SD rats were divided into blank control group ( n=3, normal feeding without any treatment), BCG alone group ( n=5), BCG+ rapamycin group ( n=6), BCG+ 3-methyladenine group ( n=6), and BCG+ starvation group ( n=3). The last 4 groups of rats were sensitized as before, and infected as before 1 week later. Rats in BCG alone group were fed normally without any treatment. Rats in BCG+ rapamycin group or BCG+ 3-methyladenine group were intraperitoneally injected with rapamycin or 3-methyladenine once every other day and fed normally. Rats in BCG+ starvation group were fasted for 48 hours after infection and then fed normally. All the rats in the first batch of 4 groups were sacrificed on the corresponding days after infection, and the tissue where the buttocks were injected with Freund′s complete adjuvant was harvested; the tissue of rats in the second batch of BCG alone group, BCG+ rapamycin group, BCG+ 3-methyladenine group, and BCG+ starvation group were harvested the same as before 7 days after infection, and all the rats in blank control group were taken the same tissue at the same time point. Hematoxylin-eosin staining was performed to observe the structure and morphology of cells in the tissue harvested; immunohistochemistry was used to observe the protein expressions of Beclin-1, microtubule-associated protein 1 light chain 3B (LC3B) in the tissue harvested. Data were statistically analyzed with Kruskal-Wallis test and Bonferroni correction. Results:Inflammatory cell infiltration was observed in the tissue of rats where the Freund′s complete adjuvant was injected in 8 d infection group, granuloma formation was seen in 15 d infection group, part of tissue cell necrosis was seen in 32 d infection group and 43 d infection group, and cell necrosis in 43 d infection group was worse than that in 32 d infection group. Seven days after infection, inflammatory cell infiltration was seen in the tissue of rats where the Freund′s complete adjuvant was injected in BCG alone group, BCG+ rapamycin group, BCG+ 3-methyladenine group, and BCG+ starvation group, while regular arrangement of cells and no inflammatory cell infiltration were observed in blank control group. There were no statistically significant differences in the protein expressions of Beclin-1 or LC3B in the tissue of rats where the Freund′s complete adjuvant was injected in 8 d infection group, 15 d infection group, 32 d infection group, and 43 d infection group ( H=1.923, 5.821, P>0.05). Seven days after infection, the protein expressions of Beclin-1 and LC3B in the tissue of rats where the Freund′s complete adjuvant was injected in blank control group, BCG alone group, BCG+ rapamycin group, BCG+ 3-methyladenine group, and BCG+ starvation group were respectively 0.325% (0.250%, 0.360%), 3.225% (1.340%, 3.987%), 4.823% (2.630%, 6.559%), 4.216% (1.790%, 5.969%), 1.765% (0.865%, 2.649%), and 0.301% (0.264%, 0.516%), 2.865% (1.455%, 5.768%), 1.033% (0.398%, 1.873%), 1.168% (0.429%, 1.907%), 0.655% (0.283%, 1.652%). The protein expression of Beclin-1 in the tissue of rats where the Freund′s complete adjuvant was injected in BCG+ rapamycin group was significantly higher than that of blank control group ( Z=4.796, P<0.05). The protein expression of LC3B in the tissue of rats where the Freund′s complete adjuvant was injected in BCG alone group was significantly higher than that of blank control group ( Z=4.953, P<0.05). Conclusions:Freund′s complete adjuvant can enhance the expression levels of local tissue autophagy-related proteins Beclin-1 and LC3B in rat tuberculous wound model.

Objective:To evaluate the reliability of a rat tuberculous wound model established by injecting Bacillus Calmette- Guérin (BCG). Methods:The experimental research was conducted. According to the random number table, fifteen 6-week-old male Sprague-Dawley rats were divided into normal control group and infection group, with 3 rats in normal control group and 12 rats in infection group. Rats in infection group were injected with Freund's complete adjuvant, 3 weeks later, they were injected subcutaneously with BCG bacterial solution to establish a model of tuberculous wounds in rats; rats in normal control group did not receive any treatment. On the 8th, 15th, 32nd, and 43rd day of infection, the skin condition at the injection sites of the rats in infection group was observed roughly. Skin tissue at the injection sites of 3 rats in infection group at each corresponding time point stated above and skin tissue at the corresponding sites of the rats in normal control group were stained with hematoxylin-eosin to observe the cell arrangement, necrosis and inflammation. On 43rd day of infection, acid-fast staining was performed on the skin tissue at the injection sites of the rats in infection group to observe the distribution of bacteria.Results:On the 8th, 15th, 32nd, and 43rd day of infection, tuberculous wound lesions were gradually developed at the skin tissues at the injection sites of the rats in infection group. The cells of the diseased tissue of the rats in infection group arranged disorderly or concentrically, and the number of granulomas and necrotic cells gradually increased, while the skin tissue cells in the corresponding parts of the rats in normal control group arranged regularly with no inflammatory cell infiltration. On the 43rd day of infection, a large number of rod-shaped bacteria were observed in the skin tissue at the injection sites of the rats in infection group.Conclusions:The rat tuberculous wound model established using BCG is stable and reliable, which can meet the experimental requirements.

Objective:To explore the selection and effects of flap/myocutaneous flap repair methods for the defect after perineum tumor resection.Methods:From January 2011 to February 2017, 31 patients with vulvar tumor who were admitted to Hunan Cancer Hospital underwent repair of wound after tumor resection with various flaps/myocutaneous flaps. The patients were composed of 5 males and 26 females, aged 39-76 years, with 27 vulvar cancer and 4 Paget′s disease in primary diseases. The size of defects after vulvar tumor radical resection ranged from 8.0 cm×4.5 cm to 27.5 cm×24.0 cm. According to the theory of perforasome, the defects were repaired by the external pudendal artery perforator flap, deep inferior epigastric artery perforator flap, rectus abdominis myocutaneous flap, anterolateral thigh flap, internal pudendal artery perforator flap, gracilis myocutaneous flap, and profunda artery perforator flap based on the specific size and location of perineum and groin where the defect was located. According to the blood supply zone of flap, totally 17 local translocation flaps, 18 axial flaps/myocutaneous flaps, and 7 V-Y advancement flaps were resected, with an area of 7.0 cm×4.0 cm to 21.0 cm×13.0 cm. All the flaps/myocutaneous flaps were transferred in pedicled fashion, and the donor sites were closed without tension. The number of flaps/myocutaneous flaps, wound closure, flaps/myocutaneous flaps survival, and follow-up were observed and recorded.Results:Altogether 42 flaps/myocutaneous flaps were harvested in 31 patients. Two flaps/myocutaneous flaps were used in 11 cases for large circular defect repair. All the defects achieved tension-free primary closure. The blood supply of 32 flaps/myocutaneous flaps was good, while insufficient blood supply was noted in the other 10 flaps/myocutaneous flaps. Seventeen flaps/myocutaneous flaps survived smoothly. Wound dehiscence occurred in 5 flaps/myocutaneous flaps 8 to 14 days postoperatively, which was healed with dressing change. Temporary congestion was noted in 7 flaps/myocutaneous flaps 2 to 5 days postoperatively, which recovered without special treatment. Three flaps/myocutaneous flaps had infection 7 to 15 days postoperatively, two of which recovered after dressing change, while the other one had partial necrosis and received debridement and direct closure. Two flaps/myocutaneous flaps were totally necrotic 8 to 15 days postoperatively, which were repaired with pedicled rectus abdominis myocutaneous flap after debridement. Seven flaps/myocutaneous flaps had partial necrosis 7 to 20 days postoperatively and were healed after dressing change. Twenty-four patients were followed up for 9-38 months. The color of flaps/myocutaneous flaps was similar to that of the surrounding skin, the shape of vulva was natural, the movement of hip joint was not limited, the function of micturition and defecation was not affected, and tumor recurrence was noted in 3 patients.Conclusions:For the complicated large defect after perineum tumor resection, the flexible application of different forms of flaps/myocutaneous flaps to repair according to different areas regains the appearance and function. However, there are many complications, so it is necessary to further strengthen the postoperative care.

Objective:To explore the extending design and anatomical basis of pedicled gracilis musculocutaneous flaps in perineal reconstruction.Methods:On six female cadavers (age ranged from 27 to 52 years old, 41.2 on average), bilateral gracilis flaps were designed, raised and transferred in the standard surgical manner and tunneled under the adductor longus muscle. Measured the distance from the tip of 12 flaps to the bilateral anterior superior iliac spine (ASIS). The myocutaneous flaps were then transferred and the distances from the tip of flaps to the ASIS were measured again. The paired sample t test (double tail) was used to compare the data measured by the two transfer method.Results:Cadaveric dissection revealed that in 6 corpses, bilateral profunda artery muscular branches all courses between the longus adductor and mangus adductor muscles, the pedicle length of 12 gracilis musculocutaneous flaps was(7.84±0.71) cm. In the standard surgical manner group, after transferring, the distance from the tip of flaps to the ipsilateral ASIS was (9.23±0.95) cm, ranged from 6.9 cm to 10.5 cm, the distance from the tip of flaps to the contralateral ASIS was(11.45±2.27) cm, ranged from 7.5 cm to 14.8 cm. In the tunnelled under the adductor longus muscle extension design group, after transferring, the distance from the tip of flaps to the ipsilateral ASIS was (4.52±1.18) cm, ranged from 2.7 cm to 6.5 cm, the distance from the tip of flaps to the contralateral ASIS was (8.92 ±1.82) cm, ranged from 4.8 cm to 11.7 cm. Compared with the standard surgical manner group, tunneling the flap under the adductor longus muscle to the ipsilateral side increased the reach by 3.5 cm to 7.3 cm, (4.71±1.14) cm, to contralateral side increased the reach by 0.9 cm to 4.1 cm, (2.53±0.89) cm. The distance to the ipsilateral anterior superior iliac spine measured by the two method , t=13.194, P<0.001, and the distance to the contralateral anterior superior iliac spine, t=9.057, P<0.001. The difference was statistically significant. The tunneled under the adductor longus muscle extension design group can increase the reach of reconstructive scope by 3.62 cm on average. The additional increasing length of tunneled under the adductor longus muscle method is 46.2%(3.62/7.84) of the average vascular pedicle length. Conclusions:Cadaveric dissection result have shown that tunneling of the gracilis musculocutaneous flap in a novel extension design way can enlengthen the pedicle length, increase its reach across the perineum.

Objective:To explore the extending design and anatomical basis of pedicled gracilis musculocutaneous flaps in perineal reconstruction.Methods:On six female cadavers (age ranged from 27 to 52 years old, 41.2 on average), bilateral gracilis flaps were designed, raised and transferred in the standard surgical manner and tunneled under the adductor longus muscle. Measured the distance from the tip of 12 flaps to the bilateral anterior superior iliac spine (ASIS). The myocutaneous flaps were then transferred and the distances from the tip of flaps to the ASIS were measured again. The paired sample t test (double tail) was used to compare the data measured by the two transfer method.Results:Cadaveric dissection revealed that in 6 corpses, bilateral profunda artery muscular branches all courses between the longus adductor and mangus adductor muscles, the pedicle length of 12 gracilis musculocutaneous flaps was(7.84±0.71) cm. In the standard surgical manner group, after transferring, the distance from the tip of flaps to the ipsilateral ASIS was (9.23±0.95) cm, ranged from 6.9 cm to 10.5 cm, the distance from the tip of flaps to the contralateral ASIS was(11.45±2.27) cm, ranged from 7.5 cm to 14.8 cm. In the tunnelled under the adductor longus muscle extension design group, after transferring, the distance from the tip of flaps to the ipsilateral ASIS was (4.52±1.18) cm, ranged from 2.7 cm to 6.5 cm, the distance from the tip of flaps to the contralateral ASIS was (8.92 ±1.82) cm, ranged from 4.8 cm to 11.7 cm. Compared with the standard surgical manner group, tunneling the flap under the adductor longus muscle to the ipsilateral side increased the reach by 3.5 cm to 7.3 cm, (4.71±1.14) cm, to contralateral side increased the reach by 0.9 cm to 4.1 cm, (2.53±0.89) cm. The distance to the ipsilateral anterior superior iliac spine measured by the two method , t=13.194, P<0.001, and the distance to the contralateral anterior superior iliac spine, t=9.057, P<0.001. The difference was statistically significant. The tunneled under the adductor longus muscle extension design group can increase the reach of reconstructive scope by 3.62 cm on average. The additional increasing length of tunneled under the adductor longus muscle method is 46.2%(3.62/7.84) of the average vascular pedicle length. Conclusions:Cadaveric dissection result have shown that tunneling of the gracilis musculocutaneous flap in a novel extension design way can enlengthen the pedicle length, increase its reach across the perineum.

The mammalian central nervous system (CNS) is considered an immune privileged system as it is separated from the periphery by the blood brain barrier (BBB). Yet, immune functions have been postulated to heavily influence the functional state of the CNS, especially after injury or during neurodegeneration. There is controversy regarding whether adaptive immune responses are beneficial or detrimental to CNS injury repair. In this study, we utilized immunocompromised SCID mice and subjected them to spinal cord injury (SCI). We analyzed motor function, electrophysiology, histochemistry, and performed unbiased RNA-sequencing. SCID mice displayed improved CNS functional recovery compared to WT mice after SCI. Weighted gene-coexpression network analysis (WGCNA) of spinal cord transcriptomes revealed that SCID mice had reduced expression of immune function-related genes and heightened expression of neural transmission-related genes after SCI, which was confirmed by immunohistochemical analysis and was consistent with better functional recovery. Transcriptomic analyses also indicated heightened expression of neurotransmission-related genes before injury in SCID mice, suggesting that a steady state of immune-deficiency potentially led to CNS hyper-connectivity. Consequently, SCID mice without injury demonstrated worse performance in Morris water maze test. Taken together, not only reduced inflammation after injury but also dampened steady-state immune function without injury heightened the neurotransmission program, resulting in better or worse behavioral outcomes respectively. This study revealed the intricate relationship between immune and nervous systems, raising the possibility for therapeutic manipulation of neural function via immune modulation.

T cells are divided into two subsets,αβΤandγδT cells, according to the T-cell recep-tor ( TCR) expressed. γδT cells are a small minority of T cells and in contrast to αβΤ cells, they do not seem to require antigen processing and major-histocompatibility-complex ( MHC ) presentation of peptide epitopes. This group of T cells is usually much less common than αβT cells, but plays an important role in anti-infection, anti-tumor and immunoregulation. This review summarizes the production, development, dis-tribution, genetic characteristics, antigen recognition characteristics, biological and immunological functions of γδT cells as well as their unique roles and mechanisms in bacterial infectious diseases.

Objective To analyze the clinical and laboratory characteristics of the ischemic stroke in patients with non-valvular atrial fibrillation (AF), and to provide evidence for the prevention of ischemic stroke. Methods A total of 198 patients with ischemic stroke were chosen and divided into two groups:with AF (71 patients)/and without AF (127 patients) groups. Clinical data and biochemical markers were collected and compared in two groups. CHADS2 and CHA2DS2-VASc score systems were used to determine the risk levels in patients with AF. Finally, related risk factors of ischemic stroke with AF were determined and analyzed. Results The values of age, length of hospital stay, the hypertention history, heart rate and plasma homocysteine (Hcy) were significantly higher in the with-AF group than those in the without-AF group ( P <0.05). The levels of total cholesterol (TC), triglyceride (TG) and very low density lipoprotein cholesterol (VLDL-C) were sig?nificantly lower in the with-AF group than those of the without-AF group (P<0.05). CHA2DS2-VASc scores reached to the moderate-to-high risk level in the with-AF group. Multiple-factor logistic regression analysis showed that age and heart rate were the independent risk factors of the ischemic stroke in patients with non-valvular AF. ROC analysis indicated that age (AUC=0.761, cut-off point=72.50 years old) and heart rate (AUC=0.612, cut-off point=76.50 bit/min) had predictive and di?agnostic value for the ischemic stroke in patients with non-valvular AF. The age of these patients had the best sensitivity (70.4%) and specifity (71.1%), and the cut-off point of which was 72.50 years old. Conclusion The characteristics of isch?emic stroke in patients with non-valvular AF includes older age, faster heart rate, higher CHA2DS2-VASc scores and higher Hcy level.

ObjectiveTo evaluate the diagnostic value of ultrasound or CT guided percutaneous Trucut needle biopsy on the diagnosis of pancreatic tumors.Methods One hundred and twenty-four patients clinically diagnosed as pancreatic cancer without pathological diagnosis underwent percutaneous pancreatic biopsy by using Trucut needle under ultrasound or CT guidance.ResultsOne hundred and nine procedures of ultrasound-guided biopsy and 15 procedures of CT-guided biopsy were performed,and one patient received 2.3times of punctures.Tissue samples were obtained in all 124 patients,the diagnostic accuracy was 95.2％,among them 115 were adenocarcinoma,5 were cystadenoma,2 were metastasis cancer,1 was cancer of unknown origin and 1 was normal.The sensitivity,specificity,and accuracy were 99.2％ 100％,and 99.2％,respectively.Transient serum amylase increase was observed in 3 patients; 5 patients' abdominal pain aggravated,but all recovered with conservative management.One patient was found to have tumor seeding on the spot of insertion after 34 days.No other major complications occurred.ConclusionsUltrasound or CTguided percutaneous pancreatic 16 ～ 18G Trucut needle biopsy is a safe and simple procedure with excellent diagnostic value for pancreatic cancer.