Objective To evaluate the preliminary outcome of stable vitiligo treatment with ReCell(R )technique.Methods Six patients with stable vitiligo were treated with ReCell(R ) technique.In each patient,a thin razor-thickness cutaneous biopsy was harvested from uninvolved area near the vitiligo patches.It was then processed through the ReCell(R ) system and 1 ml autologous epidermal cell suspension was obtained.The lesion area was dermabraded using a diamond fraise wheel to the dermoepidermal junction.The cell suspension was then sprayed on the wound and covered with non-adhering dressings.Results The patients were followed up for 6 months.5 patients presented with repigmentaion in the treated area.There was no significant response in one patient who was diagnosed as systematic vitiligo.Conclusions The ReCell(R ) technique is an alternative treatment for stable vitiligo patients.The clinical outcome will be satisfactory when appropriate patients are selected.

Objective: To investigate the effect and mechanism of helix B surface peptide (HBSP) on myocardial ischemia reperfusion injury (MIRI) in experimental mice.
Methods: The MIRI model was established by ligation of anterior descending coronary artery of the mice for 45 min and followed by corresponding treatment at 5 min before reperfusion. A total of 64 male ICR mice were randomly assigned to 4 group:①Sham group,②MIRI group, the mice received normal saline at 5 min before reperfusion,③HBSP group, MIRI mice received HBSP at 5 min before reperfusion and④HBSP+PD98059 group, MIRI mice received PD98059 (a speciifc blocker of ERK1/2) at 20 min before reperfusion and followed by HBSP at 5 min before reperfusion.n=16 in each group, all animals were treated for 2 hours. The area of myocardial infarction (MI) was detected by TTC-EB double staining method, the myocardial apoptosis rate was examined by TUNEL method, the levels of protein expression of ERK1/2 and phosphorylation of ERK1/2 were measured by Western blot analysis.
Results: Compared with MIRI group, HBSP group presented decreased MI area, decreased myocardial apoptosis rate and increased phopsphorylation level of ERK1/2, allP<0.05. Compared with HBSP group, HBSP+PD98059 group showed decreased phopsphorylation level of ERK1/2, increased myocardial apoptosis rate and increased MI area, allP<0.05.
Conclusion: HBSP may reduce the MI area via inhibiting myocardial apoptosis and therefore, protecting the experimental mice from MIRI; the mechanism might be related to the activation of ERK1/2 pathway.

Previous studies proposed that the synergistic effect of fibroblast growth factor-21 (FGF-21) and insulin may be due to the improvement of insulin sensitivity by FGF-21. However, there is no experimental evidence to support this. This study was designed to elucidate the mechanism of synergistic effect of FGF-21 and insulin in the regulation of glucose metabolism. The synergistic effect of FGF-21 and insulin on regulating glucose metabolism was demonstrated by investigating the glucose absorption rate by insulin resistance HepG2 cell model and the blood glucose chances in type 2 diabetic db/db mice after treatments with different concentrations of FGF-21 or/and insulin; The synergistic metabolism was revealed through detecting GLUT1 and GLUT4 transcription levels in the liver by real-time PCR method. The experimental results showed that FGF-21 and insulin have a synergistic effect on the regulation of glucose metabolism. The results of real-time PCR showed that the effective dose of FGF-21 could up-regulate the transcription level of GLUT1 in a dose-dependent manner, but had no effect on the transcription level of GLUT4. Insulin (4 u) alone could up-regulate the transcription level of GLUT4, yet had no effect on that of GLUT1. Ineffective dose 0.1 mg kg(-1) FGF-21 alone could not change the transcription level of GLUT1 or GLUT4. However, when the ineffective dose 0.1 mg x kg(-1) FGF-21 was used in combination with insulin (4 u) significantly increased the transcription levels of both GLUT1 and GLUT4, the transcription level of GLUT1 was similar to that treated with 5 time concentration of FGF-21 alone; the transcription level of GLUT4 is higher than that treated with insulin (4 u) alone. In summary, in the presence of FGF-21, insulin increases the sensitivity of FGF-21 through enhancing GLUT1 transcription. Vice versa, FGF-21 increases the sensitivity of insulin by stimulating GLUT4 transcription in the presence of insulin. FGF-21 and insulin exert a synergistic effect on glucose metabolism through mutual sensitization.
Animals ; Blood Glucose ; Diabetes Mellitus, Experimental ; metabolism ; Drug Synergism ; Fibroblast Growth Factors ; pharmacology ; Glucose ; metabolism ; Glucose Transporter Type 1 ; metabolism ; Glucose Transporter Type 4 ; metabolism ; Hep G2 Cells ; Humans ; Insulin ; pharmacology ; Insulin Resistance ; Liver ; metabolism ; Mice

OBJECTIVETo investigate the effect of the modified expanded forehead skin flap in nasal reconstruction.

METHODSAccording to flap design, the frontal arteries that were not selected as the pedicle were ligated in order to enhance expansion and delay effects. Besides the middle forehead skin flap for nasal reconstruction, the expanded transversal forehead flap was employed with its donor site sutured directly, resulting in inconspicuous scar. This method was used for 11 cases of nasal reconstruction.

RESULTSAll the flaps survived. Postoperative follow up for 6 months to 8 years and 4 months showed satisfactory results with good appearance and function.

CONCLUSIONSThe method of modulating the blood supply to the flap and selecting the upper area of the forehead for the flap is an effective modification for nasal reconstruction.

Adolescent ; Adult ; Female ; Forehead ; surgery ; Humans ; Male ; Rhinoplasty ; methods ; Skin Transplantation ; methods ; Surgical Flaps ; Tissue Expansion ; Young Adult

To decrease the hemolysis side effect of puerarin, the basic formula and preparation of puerarin submicron emulsion were optimized and the physicochemical properties were evaluated. Puerarin submicron emulsions were prepared by phase inversion-ultrasound combining with phospholipids complexes technology. The effects of preparative parameters, such as emulsification time, stirring velocity and ultrasound time, on mean diameter, span of dispersity, entrapment efficiency and overall desirability were investigated. The three dimensional response surface graphs were produced by second-order polynomial and liner equation, which predict the optimal experiment conditions. All response variables were found to be greatly dependent on three independent variables. Second-order polynomial equations were fitter than liner equations for this study. The optimal emulsification time, stirring velocity and ultrasound time was 15 min, 2 000 r x min(-1), 30 min, respectively. The mean diameter, span of dispersity, entrapment efficiency, drug content and zeta potential of emulsions prepared by the method were 228.23 nm, 0.628 4, 84. 32%, 9.98 mg x mL(-1), - 29.03 mV, respectively. Puerarin submicron emulsion was prepared by the optimized preparation method. The narrow particle diameter distribution, high envelopment efficacy and good stability were obtained. The physicochemical properties were suitable for the requirement of the intravenous emulsion.
Emulsions ; Isoflavones ; administration & dosage ; chemistry ; Particle Size

OBJECTIVETo investigate the feasibility of using modified peroneal tendofascial compound flap with partial tendon of peroneal long muscle in lower leg refractory defect with Achilles tendon rupture.

METHODSBased on the application experience of peroneal tendofascial compound flap for lower leg refractory defects, partial tendon of peroneal long muscle was included in the flap to repair the Achilles tendon rupture.

RESULTS6 cases were treated. The maximum size of modified compound flap reached 5 cm x 5 cm. The maximal included tendon in the flap was 5 cm in length. All the flaps survived completely. Partial epidermis necrosis happened in one case between the skin graft at the donor site and the edge of the flap pedicle. The patients were followed up for 5 months to 2 years with satisfactory cosmetic and functional results.

CONCLUSIONSThe modified compound flap has reliable blood supply and can be easily transposed, leaving less morbidity at the donor site. It is very suitable for lower leg refractory defect with the Achilles tendon rupture.

Achilles Tendon ; injuries ; Adult ; Aged ; Feasibility Studies ; Female ; Follow-Up Studies ; Humans ; Leg Injuries ; surgery ; Male ; Middle Aged ; Surgical Flaps ; Tendon Injuries ; surgery ; Treatment Outcome

OBJECTIVETo investigate the clinicopathologic characteristics and differential diagnosis of myopericytoma.

METHODSSix cases of myopericytomas were analyzed by light microscopy and immunohistochemistry (LSAB detection method).

RESULTSTumors from 3 females and 3 males were found on the extremities and chest wall. The ages of these 6 patients ranged from 16 to 58 years. Histologically, all tumors were unencapsulated. The neoplastic cells were oval to spindle shaped with eosinophilic cytoplasm, had a myoid appearance and showd areas of concentric perivascular proliferation around lesional blood vessels which were present with focal myxoid stroma. Morphologically in some cases the tumor overlap myofibroma, hemangiopericytoma or glomus tumor. One tumor was located entirely within the lumen of a vein. In another case, the tumor displayed cellular pleomorphism, mitotic activity, necrosis should be diagnosed as malignant myopericytoma. The neoplastic cells were positive for SMA and negative for CD31, CD34, S-100, and CK.

CONCLUSIONSMyopericytoma is composed of oval to spindle shaped myoid cells with a striking tendeny for concentric perivascular growth. These cells differentiate towards perivascular myoid cells or myopericytes. Extremely rare malignant myopericytoma exist.

Actins ; metabolism ; Adolescent ; Adult ; Diagnosis, Differential ; Female ; Glomus Tumor ; metabolism ; pathology ; Hemangiopericytoma ; metabolism ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Myofibroma ; metabolism ; pathology ; Neoplasms, Vascular Tissue ; metabolism ; pathology ; Soft Tissue Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

OBJECTIVETo investigate the clinical effect of 1% lauromacrogol for the treatment of facial refractory hemangioma and vascular malformation.

METHODSFrom Sept 2009 to Nov 2011, 55 patients (20 male, 35 female, 1 month to 30 years) with different types of facial hemangiorwa and vascular malformation about 1.0 cm x (0. 5-5.0) cm x 10.0 cm in size, underwent 1% lauromacrogol intratumor injection therapy. Generally, the injection dose, concentration, frequency were determined by the age of the patients, the volume and depth of the lesion. The dose was limited to 10 mg every time. The injection interval is 14 weeks.

RESULTSAfter followed up for 3-16 months, 41 cases were cured, 9 cases were greatly improved, and 5 were partially improved. Skin necrosis happened in only 2 cases.

CONCLUSIONSLauromacrogol is safe, simple and effective as a sderosing agent for the treatment of facial refractory hemangioma and vascular malformation. It provides a new and alternative way for the treatment of facial refractory hemangioma and vascular malformation.

Adolescent ; Adult ; Child ; Child, Preschool ; Face ; blood supply ; Facial Neoplasms ; drug therapy ; Female ; Hemangioma ; drug therapy ; Humans ; Infant ; Injections, Intralesional ; Male ; Polyethylene Glycols ; administration & dosage ; Sclerosing Solutions ; administration & dosage ; Vascular Malformations ; drug therapy ; Young Adult

Objective To understand the pathogenic distribution and epidemiological trend of hand-foot-and-mouth disease (HFMD),and provide evidence for the prevention and control of HFMD.Methods Children who were diagnosed with HFMD in a hospital between January and December 2015 were investigated,real time fluorescence PCR was used to detect enterovirus universal type EV,enterovirus 71 (EV71),and Coxsackievirus A16 (CoxA16) in specimens from children with HFMD.Positive rates and distribution of various types of EV among children of different months,genders,age groups,and infection types were analyzed.Results A total of 837 throat swab specimens from HFMD children were collected in 2015,380 (45.40％) of which were EV positive specimens.Virus typing showed that 110 (28.95 ％),7 (1.84 ％),6(1.58 ％),and 257(67.63 ％) were positive specimens for EV71,CoxA16,EV71 + CoxA16,and other types of EV.HFMD had a high prevalence since April,reached a peak in May-June,and remained high incidence in July-December.Positive rates of EV in children of different months were statistically different (P＜0.05).The age of onset was mainly in children under 3 years.Positive rates of EV and constitute ratios of different types of EV in children of different age groups were all statistically different (all P＜0.05).The positive rate of EV in severe HFMD cases was higher than common cases (65.34％ vs 27.06％,P＜0.001).The proportion of severe cases in children with EV71 infection and other types of EV infection were 90.00％ and 60.70％ respectively;children with EV71 + CoxA16 double infection were all severe cases.Constitute of EV types in children with different infection types was statistically different(P＜0.001).Conclusion In 2015,EV infection in hospitalized children with HFMD in this hospital was mainly caused by other types of EV (nonEV71 and non-CoxA16),the high prevalence season,high-risk population under 3 years of age,and severe cases should be paid high attention,prevention and treatment should be performed well.

Purpose: The purpose of this study was to retrospectively compare the clinical characteristics and imaging features on (CEUS) of combined hepatocellular cholangiocarcinoma (CHC) with those of hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC). Methods: The clinical information and CEUS features of 45 patients with CHC from 2015 to 2019 and 1-to-1-matched control subjects with HCC and CC (45 each) were compared. Results: Simultaneous elevation of α-fetoprotein (AFP) and cancer antigen (CA) 19-9 was more common in CHC than in HCC and CC. In the arterial phase, hyperenhancement (homogeneous and heterogeneous) was more common in CHC (73.3%) and HCC (100%), while peripheral rimlike enhancement was more common in CC (55.6%). In the portal phase, marked washout was significantly more frequent in CHC and CC than in HCC (42.2% and 53.3% vs. 6.7%). In the delayed phase, marked washout was more common in CHC (82.2%) and CC (93.3%) than in HCC (40.0%). The washout time (WT) was much shorter in CHC and CC than in HCC (33.8±13.1 seconds and 30.1±11.6 seconds vs. 58.4±23.5 seconds). Using the combination of simultaneous elevation of AFP and CA 19-9 with marked washout in the delayed phase and a WT <38 seconds or arterial hyperenhancement to differentiate CHC from HCC or CC, the accuracy, sensitivity, and specificity were 74.4%, 93.3%, and 55.6% and 71.1%, 80.0%, and 62.2%, respectively. Conclusion Although some CEUS imaging features of CHC, HCC, and CC overlap, the combination of tumor markers and CEUS features can be helpful in differentiating CHC from HCC and CC.