Objective To investigate the therapeutic effects of delayed lung lavage with exogenous pulmonary surfactant(PS)diluent on endogenous surfactant system dysfunction and acute respiratory failure caused by severe smoke inhalation in rats.Method Ninety Wistar rats were randomly separated into five groups:Group I,normal control(n=14);Group Ⅲ,smoke inhalation(n=27);GroupⅢ,smoke+PS lavage+mechanical ventilation(MV),n=21;Group IV,smoke+saline lavage+MV,n=10;Group V,smoke+MV,n=18.The lungs were lavaged with 30 ml/kg normal ssdine containing 100 mg/kg PS or same volume of saline via tra cheal catheter at 2 h after smoke inhalation,then the animals were placed on a ventilator for 4 h,and observed until 24 h after injury.The arterial blood gas level,lung water volume,static lung compliance(Cst),total protein and albumin contents in bronchoalveolar lavage fluid(BALF),surface tension properties of BALF,and fatality rate at 24 h were measured.Results Smoke inhalation caused a similar acute hypoxia and severe carbon monoxide poisoning immediately in all injured groups.The animals in group Ⅱ showed acute respiratory failure,serious hish permeability pulrnonary edema,and surfactant system dysfunction.The surface tension properties of BALF and Cst were significantly improved by delayed lung lavage treated with exogenous PS diluent in group m(P<0.05).However,the lung water volume,total protein and albumin contents in BALF and the oxygenation had not significant difference between group Ⅲ and group Ⅱ(P>0.05).Conclusions Delayed lung lavage with exogenous PS diluent,at a certain extemt,restored endogenous suffactant function inhibited by smoke inhalation and improved lung function.Nevertheless,the trent could not alleviate rash permeability pulmonary edema and respiratory failure drarnatically.The expected decrease of mortality at early stage after smoke inhalation injury was not showed yet.

Relative deficiency of serum insulin and insulin resistance of tissues are the main causes of postburn hypercatabolism.In order to evaluate the clinical effects of tolbutamide to improve postburn hypermetabolism,9 burn patients were given tolbutamide and observed for 10 days after the drug had gone through animal experiments.It was found that tolbutamide could improve postburn hyper-metabolism through following ways:1.To stimulate the secretion of insulin and enhance the effect of insulin.2.To reduce the insulin resistance of tissues and promote glucose utilization of skeletal muscles.3.To inhibit the secretion of glucagon.

The rate of resting energy expenditure (REE) was determined in 75 cases of burn patients with different total areas of burned wounds.Itwas found that.1.The rate of REE increased with the increase of the total area of burned wounds.2.When the total burned body surface area was equal,the rate of ERE increased more signficantly in the case with more extensive third degree burns.3.In the period immediately after the healing of the burned wounds,the rate of REE remained significantly higher than in the normal subjects.

Thirty-two adult patients with burn wounds over 50% TBSA were randomized into the nutritioal and the control group.Energy supplement Ifor the patients of the nutritional group was given according to the burn nutrition formula of the Third Military Medical College as follows,Energy (kJ) /day=4184 (1000 cal)?body surface area (m2) +105 (25 cal)?burn surface area (%)glucose,fat:protein=55~60:20~30:15~20calorie (cal):nitrogen (g)=150~170:1The patients of the control were prescribed to eat the hospital diet freely.All the patients of the 2 groups were observed for 28 days postburn with their burn wounds similarly and properly treated.It was found that most of the nutritional indices observed were better in the nutritional group than in the control.

The resting energy expenditure (REE) and the relative ratio of carbohydrate,fat and protein were investigated on the 1st to the 28th dqy postburn in 75 adult burn victims with burn area ranged between 5~98% TBSA.It was found that there was high catabolism of fat and protein but relatively low consumption of carbohydrate after burns.The more severe the burn injury,the more marked the above changes.On the basis of the metabolic characteristics of burn patients and on the traditional dietary habits of Chinese,a reasonable relative ratio among carbohydrate,fat and protein,the 3 main nutritional elements,in the diet of burn patients was suggested,viz,carbohydrate:fat:protein=55~60:20~30:15~20.

Objective To investigate endometrium receptivity in patients with luteinized unruptured follicle(IUF)by measuring the expression of estrogen receptor(ER),progesterone receptor(PR)and integrin αVβ3 in the endometriunm Methods From May 2007 to Nov.2007,17 infertile women with LUF were selected as LUF group matched with 13 infertile cases with normal ovulation as control group.They all underwent frozen-thawed embryo transfer in Reproductive Medicine Center.Renmin Hospital of Wuhan University.Endometrial tissue in anterior and posterior wall of uterus of LUF group and control group were biopsied by a small curettage between 7 and 11 days after luteinizing hormone(LH)surge.The expression of ER,PR and integrin αVβ3 in endometriam were detected by immunohistochemistry staining.The level of estrogen and progesterone were measured by chemiluminescence assay.Then,the relationship between αVβ3 expression in endometrium and the level of estrogen/progesterone were analyzed in LUF patients.Results (1)There was no remarkable difference in the level of estrogen between LUF [(656±299)pmol/L]and control group[(727±275)pmol/L,P>0.05].However,the level of progesterone were(23±8)nmol/Lin LUF group and(35±10)nmol/L in control group,which reached statistical difference(P<0.01).(2) The expression of ER,PR in endometrium of LUF patients were 183.9±2.4 and 168±3.which were significantly higher than 109.4±6.3 and 106±4 in control group(P<0.01).The expression of integrin α Vβ3 in endometrium of 115±11 in LUF group were significantly lower than 191±9 in control group(P< 0.01).(4)In LUF group,the expression of αVβ3 in endometrium waft correlated positively with the level of progesterone(r=0.77,P<0.01)and irrelevant with the level of estrogen(r=0.01,P>0.05).Conclusion The higher expression of estrogen and progesterone and lower expression of integrin αVβ3 misht confer impaired receptivity of endometrium and interfere with embryo implantation.

Objective To elucidate the features of the expression of P53,proliferation and apoptosis in gestational trophoblastic tumor(GTT).Methods Ten cases of normal placenta,10 cases of complete hydatidiform mole(CM),20 cases of invasive hydatidiform mole(IM)and 19 cases of choriocarcinoma(CCA)paraffin-embedded tissues were studied.P53 and PCNA were detected with immunohistochemistry,apoptosis was detected with terminal deoxy-nucleotidyl transferase-mediated dUTP-biotin nick end labeling(TUNEL).Results In NP,CM,IM and CCA,the P53 indexes(P53-Ⅰ)were 4.12%,21.68%,39.61% and 27.39% respectively with significant differences among them(P

Aim To investigate the protective mechanism of anisodine hydrobromide against cerebral ischemia-reperfusion injury in rats.Methods In vivo: the cerebral ischemia-reperfusion injury model was established by middle cerebral artery occlusion(MCAO)via suture method in rats;the rats were injected anisodine hydrobromide(1.2,0.6,0.3,0.15 mg·kg-1);the morphological changes were detected by HE staining;the Nissl staining was used to count the number of surviving neurons;the activity of CAT and LDH,the LPO contents in the brain tissue were measured;the expressions of Bax,Bcl-2,caspase-3 and p-Akt in brain tissue were detected by Western blot.In vitro: Western blot assay was used to determine the expression of Bax,Bcl-2,caspase-3 and p-Akt protein expression in the OGD-R model of PC12 cells.The signal pathway of anisodine hydrobromide was identified.Results Anisodine hydrobromide with the dose of 0.15 mg·kg-1 could significantly lessen the morphological changes,and improve the number of surviving neurons;the dose of 0.3 and 0.15 mg·kg-1 could significantly improve the activity of CAT;the dose of 0.3 mg·kg-1 could significantly reduce the contents of LPO in the rat brain tissue;the dose of 1.2 mg·kg-1 could significantly decrease the activity of LDH;the dose of 0.15～1.2 mg·kg-1 could inhibit the expression of Bax,promote the expression of p-Akt in rat brain tissue.All the doses except 0.15 mg·kg-1 could promote the expression of Bcl-2 in rat brain tissue.In vitro,the results showed that anisodine hydrobromide in 25～100 μmol·L-1 could significantly improve the expression of Bcl-2 and the ratio of Bcl-2/Bax,and the dose of 50 μmol·L-1 could significantly improve the ratio of p-Akt/Akt.Conclusion The mechanism of anisodine hydrobromide against cerebral ischemia-reperfusion injury model rats might be related to its anti-oxidative activity and the activation of Akt.

OBJECTIVE:To compare the anti-inflammation,analgesia effects of decoctions extracted from Aconiti lateralis with different leaf shapes(dahua leaf,xiaohua leaf)from different producing areas(Jiangyou,Butuo). METHODS:Animals were randomly divided into blank group(distilled water),positive group,groups of Aconiti lateralis with dahua,xiaohua leaf from Ji-angyou,groups of Aconiti lateralis with dahua,xiaohua leaf from Butuo(with dose of 5 g/kg,calculated by crude drug). The an-ti-inflammation effect of decoctions extracted from Aconiti lateralis with different variety sources and leaf shapes was investigated by xylene-induced ear swelling test (n=12) in mice and egg white-induced toe swelling test (n=10) in rats (positive drug was Dexamethasone acetate tablet,0.005 g/kg). And its analgesic effect was investigated by acetic acid-induced writhing body reaction test(n=12)and hot-plate-induced pain test(n=12)in mice(positive drug was Morphine hydrochloride tablet,0.0025 g/kg). RE-SULTS:The decoctions extracted from Aconiti lateralis with dahua,xiaohua leaf from Butuo and xiaohua leaf from Jiangyou can significantly reduce the ear swelling degree(P<0.01). The decoctions extracted from Aconiti lateralis with dahua leaf from Jiangy-ou and Butuo can significantly decrease the toe swelling degree after 6 h of medication(P<0.05). And decoctions extracted from Aconiti lateralis with xiaohua leaf from Butuo can significantly reduce the number of writhing body in mice with acetic acid-in-duced pain and prolong the pain threshold of mice with hot-plate-induced pain (P<0.05 or P<0.01). CONCLUSIONS:Aconiti lateralis with dahua and xiaohua leaf from Butuo and with xiaohua leaf from Jiangyou show better anti-inflammation effect,and Aconiti lateralis with xiaohua leaf from Butuo shows better analgesic effect.

Objective:To analyze the characteristics of adults (non-pregnant women) infected with Listeria monocytogenes and to provide evidence for diagnosis and treatment of this disease. Methods:Patients admitted in West China Hospital of Sichuan University between January 2008 and April 2020 with Listeriadisease were enrolled in this study. The clinical data of patients including age, symptoms, underlying diseases and prognosis, as well as the laboratory results of WBC, neutrophil ratio (N%), procalcitonin (PCT), interleukin-6 (IL-6) and C-reactive protein (CRP), were obtained for analyzing the clinical infection and prognosis characteristics of the patients. Results:A total of 57 patients were included, patients were 18-83 (52.8±15.9) years old, percent of over 60 years old patients accounted for 35.09% (20/57). The incidence rate in summer season was the highest (45.61%, 26/57). There were 48 cases with comorbidities, sepsis occurred in 31 cases and meningitis in 18 cases. The time of diagnosis of Listeriosis was (6.1±2.9) days. After diagnosis, the target therapy was applied: such as carbapenem (26.32%, 15/57) and penicillins (22.81%, 13/57). The levels of WBC (6.77 [2.99, 9.54]×10 9/L vs 10.23 [6.71, 16.55]×10 9/L), NLR (3.07 [1.66, 8.16] vs 11.26 [5.66, 20.08]) and CRP (40.7 [16.9, 91.9] g/L vs 92.8 [59.9, 142.7] g/L) were significantly lower after treatment than those before treatment in 47 hospitalized patients (all P<0.05). Thirty-eight patients were treated according to the guidelines, 33 cases improved, 2 cases had poor prognosis and 2 cases died. Conclusion:The main risk factors of Listeria monocytogenes infection in adults (non-pregnant women) are underlying diseases, especially autoimmune diseases and pulmonary infections. Penicillins can be used as the first choice for empirical therapy. Carbapenems and erythromycin serve as the combination medications during the full course of treatment.