Objective To explore the relationship between wild rodent plague and human in wild rodent plague foci of the northwestern area in Yunnan to probe the possible transmission mechanism of wild rodent plague to human. Methods Data of component ratio of rodents and fleas was collected in different areas from 1985 - 1995. Activities and habits of residents regarding the way they keep cats and dogs and parasitic fleas and free fleas indoor were investigated, the dog serum was collected for detecting F1 antibody. Results Eothenomys miletus were main rodents in farmland and shrub, accounting for 48.00% (4753/9902) and 54.50% (4282/7857), Apodemus chevrieri were main rodents in garden, being 50.47% (1332/2639). The component ratio of Neopsylla specialis specialis was 13.31%(229/1720), 12.31%(1678/13 739) and 10.87%(957/8802) respectively in garden, farmland and shrub, higher than in indoor. The component ratio of Frantcpsylla spodix was 39.88% (686/1720), the highest in garden. Thirty-two per cent (32/100) of residents kept cats,in which 63% (20/32) with cat fleas, 68% (68/100) of villages kept dogs, in which 76%(52/68) with fleas. Eighteen parasitic fleas were caught from 43 dogs with a flea index of 0.119 and a rate for fleas of 11.63%, 7 pulex were collected from 17 indoor. Forty-three blood serum samples were obtained from dogs, among which 3 were positive blood serum. Conclusions Residents touch affected animals or media in different situations. The possibility of transmission for wild rodent plague to human exists in loci in a chain of wild rodent plague → fleas or predation → homebred animal plague (cats or dogs) →touching or respiratory → human.

OBJECTIVETo evaluate the effect of bridged free latissimus dorsi musculo-cutaneous flap on repairing of soft tissue defect in the lower extremity.

METHODSSeven patients with extensive soft tissue defects in the lower extremities were enrolled in the clinical investigation. The defects were all repaired with bridged free latissimus dorsi musculo-cutaneous flaps. The condition of the blood vessels in the flaps and the healthy extremities was examined with ultrasound Doppler before the operation to assure the blood circulation of grafted flap. After debridement, the flap was designed in accordance with the size and the depth of the wound. Then the transplantation of the flaps were done. The operative indication and points for attention were summarized thereafter.

RESULTSAll the 7 flaps survived. All patients recovered well with satisfactory function and external appearance, except flap reduction was done in 2 patients due to undue thickness of the flaps. Indications for operation: (1) Patients with anterior or posterior tibial artery injury in the injured lower extremity in which arterial transplantation was not possible to allow the free transplantation of a skin flap. (2) The injury was extensive and deep, with the injurious condition of the blood vessels indeterminable and no healthy artery could be found for anastomosis with a donor artery. (3) No vascular injury could be identified in the contralateral healthy extremity. Points for attention included that the blood supply of the flap to be transferred should be adequate, and the survival of the flap after division of the pedicle should be assured. The length of the flap to be transferred should be longer by 10% than the distance between the site of transplantation in the lower extremities and the donor area; and the donor area should be larger by 20% than the recipient area. The skin area of the flap to be transferred should be broad enough avoid tension so that there would be no pressure on the blood vessels. Pay attention to the blood supply of the flap after operation, and the recipient limb should be properly immobilized.

CONCLUSIONThe repair of extensive soft tissue defect in the lower extremity with bridged free latissimus dorsi musculo-cutaneous flap could be satisfactory. Proper wound management, broad flap, stable immobilization were the pivotal points for the success of the operation.

Adolescent ; Adult ; Back ; Child ; Child, Preschool ; Female ; Humans ; Leg Injuries ; surgery ; Lower Extremity ; Male ; Middle Aged ; Muscle, Skeletal ; transplantation ; Reconstructive Surgical Procedures ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; Tissue Transplantation

Objective To evaluate the clinical application value of microwave ablation assistant therapy in severe traumatic liver rup -ture.Methods The clinical data of 42 patients with severe traumatic liver rupture treated by microwave ablation in Fuling central hospital from October 2012 to June 2016 were retrospectively analyzed .The treatment effect ,operation time ,intraoperative blood loss and postoperative complications were observed .Results Among the 42 patients,simple microwave ablation hemostasis was performed in 11 cases,microwave ablation hemostasis and deep mattress suture in 13 cases and microwave ablation hemostasis debridement plus partial hepatectomy in 18 ca-ses.Forty cases were cured .During perioperative period ,3 cases of bile leakage occurred ,massive ascites was found in 2 cases,massive pleu-ral effusion was found in 4 cases,incision infection was found in 2 cases,transient mild hemoglobinuria occurred in 3 cases.After treatment, the patients recovered to normal without postoperative bleeding ,gastrointestinal leakage ,liver failure or other complications .During the follow-up of at least 2 months,massive pleural effusion occurred in 3 cases,liver abscess in 2 cases,no deaths more.Conclusion Microwave abla-tion assisted treatment of severe traumatic liver rupture is a relatively safe and effective method ,it can reduce operation time and intraoperative bleeding and be used in clinical practice .

OBJECTIVE: To discuss the repairing procedure of skin and soft tissue defect around the malleolus, achilles tendon exposure, or calcaneus tendon exposure by superior regressive island fasciocutaneous skin flap graft. METHODS: We used the superior regressive island fasciocutaneous skin flaps to repair 13 cases of skin and soft tissue defect or achilles tendon exposure around malleolus after trauma, scar ulcer, tumor, or other occasions. The maximal size of skin and soft tissue defect was 6 cm x 14 cm. The maximal size of calcaneus exposure was 5 cm x 10 cm. RESULTS: Twelve cases obtained complete success with satisfactory results, and 1 case of necrosis delayed wound healing by latissimus dorsal myocutaneous flap graft. The follow-up lasted from 6 months to 4 years with satisfactory results. CONCLUSION The superior regressive island fasciocutaneous skin flap graft is an effective and convenient method to repair skin and soft tissue defect around the malleolus, achilles tendon exposure, or calcaneus tendon exposure.
Adolescent ; Adult ; Ankle ; surgery ; Child ; Child, Preschool ; Female ; Foot Injuries ; surgery ; Humans ; Male ; Reconstructive Surgical Procedures ; methods ; Skin ; injuries ; Skin Transplantation ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; Young Adult

OBJECTIVETo evaluate the long-term results of repair of burn hands with large sheet of split-thickness autoskin grafting with the preservation of denatured dermis.

METHODSOne hundred and fifty-two hands in 86 burn patients with deep partial thickness and full thickness burn were enrolled in the study. The burned hands were treated by tangential excision and grafted with large sheet of split-thickness autoskin with the preservation of denatured dermis. The patients were followed-up from 3 months to 3 years. The skin color, elasticity, degree of contracture and the functional grading of the operated hands were observed.

RESULTSGood function was found in one hundred and forty-one out of the 152 burn hands (92.8%). For the rest 11 hands, pigmentation was found in 4, poor appearance in 4, and 3 hands with both poor appearance and function.

CONCLUSIONLarge sheet of split-thickness autoskin grafting with the preservation of denatured dermis could be an optimal choice for the management of hands with deep partial thickness burn, and it could restore the appearance and function of the hands satisfactorily.

Adolescent ; Adult ; Burns ; surgery ; Child ; Dermis ; surgery ; transplantation ; Female ; Follow-Up Studies ; Hand Injuries ; surgery ; Humans ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; methods ; Surgical Flaps ; Wound Healing

OBJECTIVETo look for the best method of repairing nose and adjacent tissue defect after burn and observe the effect.

METHODSTwelve patients with post-burn nose and adjacent tissue defect deformities hospitalized from January 1999 to December 2008 were repaired with expanded forehead flap, pedicled upper-arm flap, axial post-auricular reversed flow island flap, and nasolabial groove flap. Among them, 4 cases with total nasal defect, 8 cases with partial nasal defect; and 3 cases were accompanied with scars on cheek, 5 cases accompanied with scars on forehead, 5 cases accompanied with upper lip ectropion and subtotal upper lip defect. The skin flap size ranged from 3.0 cm x 1.5 cm to 10.0 cm x 8.0 cm.

RESULTSFive cases were repaired with expanded forehead flap, 3 cases with pedicled upper-arm flap, 1 case with axial post-auricular reversed flow island flap, and 3 cases with nasolabial groove flap respectively. All the 12 flaps survived. Patients were followed up for 1 to 7 years, and nasal function and appearance were obviously improved.

CONCLUSIONSOptimal repairing method shall be chosen to repair nasal defect after burn according to its extent, and forehead flap is preferred. Pedicled upper-arm flap and reversed flow axial post-auricular island flap can be employed if local flap and ortho-position skin flap are unavailable when obvious scar is present on face as a result of severe burn.

Adolescent ; Adult ; Burns ; complications ; surgery ; Child ; Facial Injuries ; etiology ; surgery ; Female ; Humans ; Male ; Nose Deformities, Acquired ; surgery ; Reconstructive Surgical Procedures ; Skin Transplantation ; Surgical Flaps ; Young Adult

OBJECTIVETo gain an insight into the demographic characteristics and AIDS-related knowledge, attitudes and behaviors of men who have sex with men (MSM) in a Chinese city, and to offer a base for preventive measures against AIDS.

METHODSWe carried out a prevalence survey, using "snowball" methods to set up survey sites in the "comrade" community, the "comrades" looking for the respondents by various means.

RESULTSAmong 309 respondents, 265 (85.8%) were younger than 30 years, 187 (60.5%) received college education or above, 187 (60.5%) were government officials or employees, and 91 (29.4%) were students; 299 (96.8%) were willing or very willing to get knowledge about HIV prevention and treatment, 201 (65.1%) considered themselves as MSM, 76 (24.6%) admitted bisexuality, 117 (37.9%) had insertion sex with at least three men in the past six months, 61 (19.7%) had two or more regular male sexual partners, 140 (45.3%) used condoms on >80% occasions and 34 (11.0%) occasionally or never used them during vaginal sex in the past six months.

CONCLUSIONMSM in the city showed the characteristics of younger age, higher education, stable employment and income, more than one sexual partner, high frequency of high-risk behavior, and negligence of condom-use, and most (96.8%) of them are willing or very willing to obtain AIDS prevention knowledge, which deserves particular attention from relevant institutions.

Acquired Immunodeficiency Syndrome ; prevention & control ; Adolescent ; Adult ; Aged ; Asian Continental Ancestry Group ; Health Knowledge, Attitudes, Practice ; Homosexuality, Male ; psychology ; Humans ; Male ; Middle Aged ; Sexual Behavior ; Surveys and Questionnaires ; Young Adult

OBJECTIVETo explore repair methods of skin and soft tissue defects in lower extremities with free latissimus dorsi flaps.

METHODSForty-two patients with wounds and soft tissue defects in lower extremities, including 4 cases on knee, 22 cases on leg, 15 cases on ankle and foot, 1 case with extensive avulsion from knee to dorsum of foot, were hospitalized in our unit from February 1996 to February 2008. Wounds or soft tissue defects were respectively repaired with latissimus dorsi musculocutaneous flaps, latissimus dorsi muscle flaps, latissimus dorsi perforator flaps with preserved vascular sleeves, 2 double-leaf segmental latissimus dorsi compound flaps after debridement. The flaps ranged from 18 cm x 8 cm to 40 cm x 18 cm in size. The donor sites were covered by skin grafting in 19 cases.

RESULTSAll wounds were healed primarily except vascular crisis occurred in 3 cases, partial necrosis of skin at donor site in 2 cases, and graft site (1 case). Follow-up for 3 to 24 months of 31 patients showed: six cases received two-stage plastic operation on account of bulkiness with trouble in wearing shoes, and mild contraction of muscular flap in 3 cases.

CONCLUSIONSLatissimus dorsi flap in various forms can be satisfactory for repair of large skin and soft tissue defects in lower extremities.

Adolescent ; Adult ; Child ; Female ; Humans ; Lower Extremity ; injuries ; surgery ; Male ; Middle Aged ; Muscle, Skeletal ; transplantation ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; methods ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; Young Adult

OBJECTIVETo investigate the effects of antisense phosphorothioate oligonucleotides against Smac/DIABLO (asODN) on hydrogen peroxide (H2O2) induced myocardial apoptosis in neonatal rats.

METHODSPrimary myocardial cells from neonatal rats were cultured in vitro, and randomly divided into A (normal control, without transfection), B (with treatment of single liposome), C (with transfection of scrODN), D (with transfection of asODN), E (with H2O2, stimulation), F (with H2O2 stimulation after scrODN transfection), and G (with H2O2 stimulation after asODN transfection) groups. The expression of asODN mRNA and protein were determined with RT-PCR and Western blotting, respectively. The changes in cellular nuclear morphology were observed with 33258 fluorescent staining, and the percentage of nuclear apoptosis was calculated. DNA fragmentation was observed by agarose gel electrophoresis. Activation of caspase-3 and caspase-9 were evaluated by caspase colorimetric analysis kit.

RESULTSThe expression of Smac/DIABLO mRNA and protein was obviously inhibited by asODN, which was about 80% percent lower than the protein level in A,B and C groups, but there was no difference noted among A,B and C groups( P > 0.05). Not only the nuclear apoptotic percentage, but also the activity of caspase-3 and caspase-9 in A, C and D groups were in very low levels. But these indices in G group 24 hours after H2O2 stimulation were obviously lower than that in E and F groups [the nuclear apoptotic percentage were (19 +/- 5) %, (52 +/- 3) %, (55 +/- 5) %, respectively, P < 0.01)]. The DNA ladders in G group were also decreased markedly.

CONCLUSIONMyocardial apoptosis induced by H2O2 can be inhibited by asODN in rat.

Animals ; Apoptosis ; drug effects ; Carrier Proteins ; metabolism ; Caspase 3 ; metabolism ; Caspase 9 ; metabolism ; Cells, Cultured ; Hydrogen Peroxide ; Mitochondrial Proteins ; metabolism ; Myocytes, Cardiac ; drug effects ; metabolism ; Oligodeoxyribonucleotides, Antisense ; pharmacology ; Rats ; Rats, Wistar

BACKGROUND:Epidermal growth factor is an auxiliary growth factor,but its effect on the growth of bone marrow mesenchymal stem cells (BMSCs) is uncertain.OBJECTIVE:To establish a mature method for isolation,extraction and identification of rat BMSCs,to investigate the effects of epidermal growth factor (EGF) on the proliferation and migration ability of BMSCs and to explore its potential mechanisms at the same time.METHODS:Rat BMSCs were isolated and purified using the improved whole bone marrow adherence method.After the cells were subcultured to the third generation,we detected the expression of cells surface antigens CD29,CD45 and CD90 by flow cytometry.BMSCs were further identified by osteogenic and adipogenic differentiation.Meanwhile,the effect of EGF on the proliferation of passage 3 BMSCs was measured by cell counting kit-8 and clonogenic assay.And the migration of P3 cells was verified by Transwell chamber.In addition,we detected the expression of proteins related to PI3K/Akt and nuclear factor-κB signaling pathways by western blot assay.RESULTS AND CONCLUSION:The primary BMSCs were polygonal and spindle-shaped,and then gradually appeared to be spindle-shaped.The results of flow cytometry demonstrated that the passage 3 cells were positive for CD29 and CD90,but negative for CD45.Furthermore,we successfully induced the osteogenic and adipogenic differentiation of BMSCs in vitro.Additionally,our data demonstrated that EGF promoted the proliferation and migration of passage 3 BMSCs.The relative expression levels of p-Akt and Bcl-2 of PI3K/Akt signaling pathway was up-regulated and the expression of Bax was down-regulated.At the same time,the relative expression level of phosphorylated p65 of nuclear factor-κB signaling pathway was up-regulated and the expression of phosphorylated inhibitor κB was down-regulated.Moreover,the downstream protein of matrix metalloproteinase-9 was up-regulated.Those proteins were related to the migaration of BMSCs.In summary,our results suggest that EGF could promote the proliferation and migration of BMSCs.