The histopathological changes in various organs of Cynoglossus semilaevis Günther infected with red abdominal shell disease were observed by dissection and HE staining. In the ill C. semilaevis, the body surface ...The histopathological changes in various organs of Cynoglossus semilaevis Günther infected with red abdominal shell disease were observed by dissection and HE staining. In the ill C. semilaevis, the body surface was congestive and bleeding;the skin in the blind side ulcerated with extravasated blood; the gill filaments ulcerated with a lot of mucus; the liver, pancreas and spleen were swelling and bleeding with extravasated blood; the small intestine was congestive and bleeding. Degeneration and necrosis, and submucosal bleeding occurred in the skin of C. semilaevis infected with red abdominal shell disease. There was red blood cell infiltration and deposition in the space among muscle fibers. Epithelial degeneration and necrosis occurred in the parotid gland. The efferent branchial artery was congestive. The myocardial fibers had a loose structure, and a large area of fracture appeared. The liver cells were swelling with degeneration and necrosis and concentrated nucleus. A large area of the renal interstitial was broken down and necrotic. The submucosa of the small intestine had necrosis and hemorrhage.展开更多
Angioimmunoblastic T-cell lymphoma(AITL)is a unique type of peripheral T-cell lymphoma with a constellation of clinical symptoms and signs,including weight loss,fever,chills,anemia,skin rash,hepatosplenomegaly,lymphad...Angioimmunoblastic T-cell lymphoma(AITL)is a unique type of peripheral T-cell lymphoma with a constellation of clinical symptoms and signs,including weight loss,fever,chills,anemia,skin rash,hepatosplenomegaly,lymphadenopathy,thrombocytopenia and polyclonal hypergammaglobulinemia.The histological features of AITL are also distinctive.Pure red cell aplasia is a bone marrow failure characterized by progressive normocytic anemia and reticulocytopenia without leucopenia or thrombocytopenia.However,AITL with abdominal pain and pure red cell aplasia has rarely been reported.Here,we report a rare case of AITL-associated pure red cell aplasia with abdominal pain.The diagnosis was verified by a biopsy of the enlarged abdominal lymph nodes with immunohistochemical staining.展开更多
Presence of the red leg syndrome （RLS） was documented through bacterial and histological examinations in the endangered Kaiser＇s mountain newt Neurergus kaiseri obtained from a pet shop. The individuals which were ...Presence of the red leg syndrome （RLS） was documented through bacterial and histological examinations in the endangered Kaiser＇s mountain newt Neurergus kaiseri obtained from a pet shop. The individuals which were severely infected showed lethargy, appetite loss, weight loss, abdominal skin redness and skin ulcers on hind legs. This study reveals the presence of two bacteria causing RLS on the skin of captive AT. kaiseri including Proteus vulgaris and Bacillus cereus. Sections of skin in affected areas and internal organs were examined through standard histological procedures. Histologically, epidermal necrosis and ulcers, epidermal gland depletion, myositis and subcutaneous edema, gastric submucosal edema and hepatomegaly were seen. There were also correlations between the microbial infection and structural changes in tissues of Kaiser＇s mountain newt. The severity of the structural changes are related to the level of microbial infection in the target organs and could be sustained by the isolation of P. vulgaris and other pathogens. The presence of the infective bacterial population and their interaction on the skin of the newt may have changed the normal skin flora and facilitate the prevalence of other disease.展开更多
Mucuna pruriens seed shells (abundantly available agricultural waste) were processed, treated and activated using 60% orthophosphoric acid for removal of congo red and malachite green from an aqueous solution. Its phy...Mucuna pruriens seed shells (abundantly available agricultural waste) were processed, treated and activated using 60% orthophosphoric acid for removal of congo red and malachite green from an aqueous solution. Its physicochemical properties and its removal efficiencies on the textile dyes were determined. The effect of particle size, adsorbent dose, initial pH of solution, adsorbate concentration and contact time on the process of adsorption was investigated. The equilibrium, kinetic and thermodynamic properties of the dyes removal were also investigated. The experi-mental data were modeled using linear regression method of analysis. The correlation coefficient was used as a criterion for model adequacy and acceptance. Sum of squares error was used to val-idate the isotherm models. The pseudo second-order kinetic model was found to best correlate the experimental data. The intraparticle diffusion is not the only rate controlling step in the process. The experimental data were found to follow the Langmuir, Freundlich and Tempkin isotherm models. The negative free energy indicated that the adsorption processes were spontaneously feasible. The process of adsorption has been found to be endothermic in nature. The removal of malachite green was found to be more spontaneous and feasible than the removal of congo red on the adsorbent. From the study it was deduced that the Mucuna pruriens seed shells activated with phosphoric acid were found to be a good adsorbent for the treatment of textile wastewater con-taining congo red and malachite green.展开更多
【目的】了解山瑞鳖红底板病的病原菌及其对药物的敏感性,为生产中有效防治该病提供科学依据。【方法】以常规方法从患红底板病山瑞鳖的肝脏、心脏和腹水中分离病菌,人工感染确定其致病性,以API 20NE生化鉴定与16S r RNA基因序列分析相...【目的】了解山瑞鳖红底板病的病原菌及其对药物的敏感性,为生产中有效防治该病提供科学依据。【方法】以常规方法从患红底板病山瑞鳖的肝脏、心脏和腹水中分离病菌,人工感染确定其致病性,以API 20NE生化鉴定与16S r RNA基因序列分析相结合的方法鉴定病原菌,并采用K-B纸片扩散法进行药敏试验。【结果】从患病山瑞鳖的心脏、肝脏和腹水中分离到3株优势菌株,经鉴定均为嗜水气单胞菌(Aeromonas hydrophila),与标准株ATCC 7966的亲缘关系最近,同源性达99.6%。3株病原菌对舒普深、菌必治、多粘菌素B和先锋必等4种药物均高度敏感,而对先锋霉素VI、青霉素G和氨苄青霉素等3种药物均不敏感。【结论】引起广西南宁市某养鳖场山瑞鳖红底板病的病原菌是嗜水气单胞菌,可选用舒普深、菌必治、多粘菌素B和先锋必等药物进行治疗。放养密度大、水质条件差和相互咬伤是山瑞鳖在保温越冬期间红底板病暴发性流行的诱发因子。展开更多
基金Supported by Incentive Program Subsidized by Department of Science and Technology of Hebei Province(15926620H)Key Technology Research and Development Program of Science and Technology Bureau of Qinhuangdao City(201401A067,201402B043)~~
文摘The histopathological changes in various organs of Cynoglossus semilaevis Günther infected with red abdominal shell disease were observed by dissection and HE staining. In the ill C. semilaevis, the body surface was congestive and bleeding;the skin in the blind side ulcerated with extravasated blood; the gill filaments ulcerated with a lot of mucus; the liver, pancreas and spleen were swelling and bleeding with extravasated blood; the small intestine was congestive and bleeding. Degeneration and necrosis, and submucosal bleeding occurred in the skin of C. semilaevis infected with red abdominal shell disease. There was red blood cell infiltration and deposition in the space among muscle fibers. Epithelial degeneration and necrosis occurred in the parotid gland. The efferent branchial artery was congestive. The myocardial fibers had a loose structure, and a large area of fracture appeared. The liver cells were swelling with degeneration and necrosis and concentrated nucleus. A large area of the renal interstitial was broken down and necrotic. The submucosa of the small intestine had necrosis and hemorrhage.
文摘Angioimmunoblastic T-cell lymphoma(AITL)is a unique type of peripheral T-cell lymphoma with a constellation of clinical symptoms and signs,including weight loss,fever,chills,anemia,skin rash,hepatosplenomegaly,lymphadenopathy,thrombocytopenia and polyclonal hypergammaglobulinemia.The histological features of AITL are also distinctive.Pure red cell aplasia is a bone marrow failure characterized by progressive normocytic anemia and reticulocytopenia without leucopenia or thrombocytopenia.However,AITL with abdominal pain and pure red cell aplasia has rarely been reported.Here,we report a rare case of AITL-associated pure red cell aplasia with abdominal pain.The diagnosis was verified by a biopsy of the enlarged abdominal lymph nodes with immunohistochemical staining.
基金Razi University and the Iran National Science Foundation (Contract No. 91057377) that financially supported this study as a part of a PhD research project
文摘Presence of the red leg syndrome （RLS） was documented through bacterial and histological examinations in the endangered Kaiser＇s mountain newt Neurergus kaiseri obtained from a pet shop. The individuals which were severely infected showed lethargy, appetite loss, weight loss, abdominal skin redness and skin ulcers on hind legs. This study reveals the presence of two bacteria causing RLS on the skin of captive AT. kaiseri including Proteus vulgaris and Bacillus cereus. Sections of skin in affected areas and internal organs were examined through standard histological procedures. Histologically, epidermal necrosis and ulcers, epidermal gland depletion, myositis and subcutaneous edema, gastric submucosal edema and hepatomegaly were seen. There were also correlations between the microbial infection and structural changes in tissues of Kaiser＇s mountain newt. The severity of the structural changes are related to the level of microbial infection in the target organs and could be sustained by the isolation of P. vulgaris and other pathogens. The presence of the infective bacterial population and their interaction on the skin of the newt may have changed the normal skin flora and facilitate the prevalence of other disease.
文摘Mucuna pruriens seed shells (abundantly available agricultural waste) were processed, treated and activated using 60% orthophosphoric acid for removal of congo red and malachite green from an aqueous solution. Its physicochemical properties and its removal efficiencies on the textile dyes were determined. The effect of particle size, adsorbent dose, initial pH of solution, adsorbate concentration and contact time on the process of adsorption was investigated. The equilibrium, kinetic and thermodynamic properties of the dyes removal were also investigated. The experi-mental data were modeled using linear regression method of analysis. The correlation coefficient was used as a criterion for model adequacy and acceptance. Sum of squares error was used to val-idate the isotherm models. The pseudo second-order kinetic model was found to best correlate the experimental data. The intraparticle diffusion is not the only rate controlling step in the process. The experimental data were found to follow the Langmuir, Freundlich and Tempkin isotherm models. The negative free energy indicated that the adsorption processes were spontaneously feasible. The process of adsorption has been found to be endothermic in nature. The removal of malachite green was found to be more spontaneous and feasible than the removal of congo red on the adsorbent. From the study it was deduced that the Mucuna pruriens seed shells activated with phosphoric acid were found to be a good adsorbent for the treatment of textile wastewater con-taining congo red and malachite green.
