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1.
Ying Yong Sheng Tai Xue Bao ; 30(12): 4259-4266, 2019 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-31840472

RESUMO

Beak is one of the most hard tissues in cephalopods, which is important in the study of fishery ecology. We analyzed the morphological growth characteristics of 268 beaks of Gonatopsis borealis collected in the Northwest Pacific Ocean from September to November of 2018 by Chinese jigging fishing fleets. Results from the principal component analysis showed that the upper hood length (UHL), upper crest length (UCL), upper rostrum length (URL), lower hood length (LHL), lower crest length (LCL) and lower rostrum length (LRL) could be used as the morphological characteristic parameters to study the morphological growth of beak. Results from the analysis of covariance (ANCOVA) showed that there was no significant difference both in the relationships between the morphological characteristic parameters versus mantle length (ML) or body weight (BW) for males and females. The relationships between ML and UHL, LHL were best described by power functions but by logarithm function for UCL, URL, LCL, and linear function for LRL respectively. The relationships between BW and UHL, UCL, URL, LCL, LRL were best described by logarithm functions but power function for LHL based on the result of the Akaike's information criterion. The results of growth models for the morphological parameters in this study provided scientific basis for the stock assessment in further research.


Assuntos
Bico , Decapodiformes , Animais , Peso Corporal , Ecologia , Feminino , Masculino , Oceano Pacífico
2.
Ying Yong Sheng Tai Xue Bao ; 30(2): 653-660, 2019 Feb 20.
Artigo em Chinês | MEDLINE | ID: mdl-30915818

RESUMO

Sthenoteuthis oualaniensis is the most important cephalopods fishery resource of the South China Sea, which supported the falling-net fishery of Guangdong, Guangxi and Hainan Provinces of China. Understanding the fisheries biology is essential for sustainable exploitation and management of this squid. Statolith is one of the most important hard tissues of cephalopods which were widely used in the research of fisheries biology and ecology. Elements of 20 statoliths of S. oualaniensis collected in the Xisha islands waters of South China Sea during May to August by the falling-net fishery of 2017 were analyzed with Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for different sexes, different hatching groups, and history stages. The results showed that the statolith of the S. oualaniensis contained 55 elements, with calcium (Ca), strontium (Sr), sodium (Na), phosphorus (P), silicon (Si),magnesium (Mg), potassium (K), iron (Fe), barium (Ba) and boron (B) being the top ten abundant elements. The analysis of variance (ANOVA) showed that there was no significant difference in all element distributions between sexes for the most abundant ten elements. Significant differences existed in the contents of Si, Sr, Mg, Na and K but no significant difference was found in the contents of Ca, P, B, Fe and B between different hatching groups. There were significant differences in the contents of Sr, Na, P, K, Si, Mg, B and Ba, but no significant difference in the contents of Ca and Fe in the statoliths among different growth zones. Our results suggested that Sr, Na, K and Mg were probably the best four elements for life history reconstruction and examining population structure of the S. oualaniensis.


Assuntos
Decapodiformes , Animais , China , Ilhas , Magnésio
3.
J Biochem Mol Toxicol ; 29(9): 440-448, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26293243

RESUMO

This study was undertaken to evaluate the effect of ADAM8 on the proliferation and apoptosis of hepatocytes and hepatoma carcinoma cells during hepatocellular carcinoma (HCC) progression. The expression of ADAM8 was significantly increased with good correlation of PCNA expression increasing and cells apoptosis decreasing during the progression of HCC in the liver of mice. Proliferation experiment in vitro showed that recombinant ADAM8 could induce the expression of PCNA in L02 cells, but not in HepG2 cells. Apoptosis experiment in vitro showed that recombinant ADAM8 did not induce or inhibit the expression of apoptosis-related factors Bcl2, Bax, and Caspase3 in L02 cells, but significantly induced the expression of Bcl2, inhibited the expression of Bax and Caspase3 in HepG2 cells. In conclusion, our study suggested that ADAM8 could promote the proliferation of normal hepatocytes and render hepatoma carcinoma cells more resistant to apoptosis to play important roles during the progression of HCC. ADAM8; Proliferation; Apoptosis.

4.
J Biochem Mol Toxicol ; 29(7): 340-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26044069

RESUMO

Our study was undertaken to evaluate the important role that a disintegrin and metalloproteinase 9 (ADAM9) regulates IL-6 trans-signaling in carbon tetrachloride (CCl4)-induced liver injury in mice. Mice were divided into four groups. Each group respectively received mineral oil injection, CCl4 injection, anti-ADAM9 monoclonal antibody (mAb) pretreatment and CCl4 injection, anti-ADAM9 mAb and recombinant mouse ADAM9 molecules pretreatment with CCl4 injection. Our results showed that anti-ADAM9 mAb pretreatment significantly aggravated liver injury, inhibited IL-6 trans-signaling, which led to downregulation of proliferating cell nuclear antigen (PCNA), vascular endothelial growth factor (VEGF), upregulation of Caspase3, cytochrome P450 2E1 (CYP2E1), and hepatocytes apoptosis at 24 h after CCl4 injection. Recombinant ADAM9 molecules pretreatment reversed the impact of anti-ADAM9 mAb pretreatment in mice. In conclusion, our study suggested that ADAM9 could regulate the hepatocytes proliferation, apoptosis, angiogenesis, and CYP2E1 expression by activating IL-6 trans-signaling and play important protective roles during CCl4-induced liver injury in mice.


Assuntos
Proteínas ADAM/fisiologia , Tetracloreto de Carbono/toxicidade , Interleucina-6/farmacologia , Fígado/efeitos dos fármacos , Proteínas de Membrana/fisiologia , Transdução de Sinais , Proteínas ADAM/farmacologia , Animais , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Fígado/metabolismo , Masculino , Proteínas de Membrana/farmacologia , Camundongos , Substâncias Protetoras/farmacologia
5.
J Biochem Mol Toxicol ; 29(6): 288-97, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25914167

RESUMO

Our study was undertaken to evaluate the important role of interleukin-6 (IL-6) trans-signaling in acetaminophen (AAP)-induced liver injury. A soluble gp130 protein (sgp130Fc) exclusively inhibits IL-6 trans-signaling, whereas an IL-6/soluble IL-6 receptor (sIL-6R) fusion protein (hyper-IL-6) mimics IL-6 trans-signaling. Using these tools, we investigated the role of IL-6 trans-signaling in AAP-induced liver injury. Blockade of IL-6 trans-signaling during AAP-induced liver injury remarkably increased the levels of serum aspartate aminotransferase and alanine aminotransferase; lowered the level of serum sIL-6R; aggravated liver injury; inhibited the expression of phosphorylation of STAT3 (pSTAT3), proliferating cell nuclear antigen, vascular endothelial growth factor, and glycogen synthesis; and induced the expression of Caspase3, cytochrome P450 2E1 (CYP2E1), and hepatocyte apoptosis in the liver of mice. In summary, our study suggested that IL-6 trans-signaling plays important protective roles by regulating the hepatocyte proliferation and apoptosis, angiogenesis, CYP2E1 expression, and glycogen metabolism during AAP-induced liver injury in mice.


Assuntos
Acetaminofen/toxicidade , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Interleucina-6/metabolismo , Fígado/efeitos dos fármacos , Transdução de Sinais , Alanina Transaminase/sangue , Animais , Aspartato Aminotransferases/sangue , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/patologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Interleucina-6/antagonistas & inibidores , Fígado/metabolismo , Fígado/patologia , Testes de Função Hepática , Masculino , Camundongos Endogâmicos BALB C , Receptores de Interleucina-6/metabolismo , Proteínas Recombinantes de Fusão/farmacologia , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia
6.
Ying Yong Sheng Tai Xue Bao ; 25(8): 2411-7, 2014 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-25509097

RESUMO

Statolith is one of the most important hard tissues of cephalopods which is widely used in the research of fisheries ecology including population structure, life history reconstruction and so on. Trace elements of 18 statoliths of neon flying squid Ommastrephes bartramii collected in the Northwest Pacific Ocean in 2007 by Chinese jigging fishing fleets were analyzed by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The results indicated that the statoliths of O. bartramii mainly contained 55 elements, and calcium (Ca), strontium (Sr), sodium (Na), phosphorus (P), potassium (K), silicon (Si), magnesium (Mg), boron (B), iron (Fe), barium (Ba) were the 10 most abundant elements. The analysis of variance showed that there was no significant difference in each element distribution between different sexual squid except for P, Si and B. Significant differences existed in the contents of Sr and Na but no significant difference was found in the contents of Ca, P, K, Si, Mg, B, Fe and Ba between different hatching populations. There were significant differences in the contents of Ca, Sr, Na, P, Mg and Ba, but no significant difference was found in the contents of K, Fe, B and Si in the statoliths among different growth zones. This study presented Sr and Na could be the best two trace elements used in the research on the population structure and life history reconstruction for O. bartramii.


Assuntos
Decapodiformes/química , Oligoelementos/química , Animais , Bário , Boro , Cálcio , Ferro , Magnésio , Oceano Pacífico , Fósforo , Potássio , Silício , Sódio , Estrôncio
7.
Ying Yong Sheng Tai Xue Bao ; 24(7): 2007-14, 2013 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-24175534

RESUMO

Abstract: Bayesian Schaefer model was applied to assess the stock of Illex argentinus in the Southwest Atlantic Ocean, with the risk of alternative management strategies for the squid analyzed. Under the scenarios of normal and uniform prior assumptions, the estimated model parameters and reference points were similar, and higher than the values under the scenario of logarithmic normal prior assumption. Under the three proposed scenarios, the fishing mortalities and the total catches in 2001-2010 were lower than the reference point F0.1 and the maximum sustainable yield (MSY), indicating that the I. argentinus was in an expected sustainable exploited level but not in over-fishing and over-fished. The results of decision analysis indicated that at the same harvest rate, the stock of the I. argentinus under the scenario of logarithmic normal prior assumption in 2025 would be the lowest, and the probability of collapse would be the highest. Under the three scenarios, the harvest rate in 2025 would be all 0.6 if the catch was the maximum. However, if the harvest rate was set to 0.6, the stock of the I. argentinus after 2025 would have definite risk, and thus, the harvest rate 0.4 and the catch 550000 t appeared to be the best management regulation or the baseline case.


Assuntos
Teorema de Bayes , Conservação dos Recursos Naturais/métodos , Decapodiformes/crescimento & desenvolvimento , Pesqueiros/métodos , Animais , Oceano Atlântico , Biomassa , Decapodiformes/fisiologia , Ecossistema , Pesqueiros/estatística & dados numéricos
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