首页 > 最新文献

European Journal of Experimental Biology最新文献

英文 中文
Hemoglobin A1c and Umbilical Cord Components: Prediction of Fetal Macrosomia in Women with Gestational Diabetes Mellitus 血红蛋白A1c和脐带成分:预测妊娠期糖尿病妇女胎儿巨大儿
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100013
E. Al-Maini, Layla H Hamad, Nadia D Yassir, S. Hamad
Objectives: This study aims to understand the importance of the glycated hemoglobin (HbA1c ) levels and umbilical cord components in prediction of fetal macrosomia. Methods: Ninety pregnant women (45 women with diabetes mellitus and 45 women with no diabetes mellitus) were chosen to measure the HbA1c level and ultrasound umbilical cord components during their 36th to 37th weeks of pregnancy. Results: Significantly higher (p 45 mmol/mol and 5 women had normal HbA1c levels. 12 of 45 (27%) of non-diabetic women had constitutionally macrosomic fetuses with normal HbA1c levels. Conclusions: The relationship between the umbilical cord components and the birth weight was not specific for the diabetic group. Macrosomic fetuses could be predicted more accurately by the combination of both birth weight and the umbilical cord components (i.e. Wharton’s jelly).
目的:本研究旨在了解糖化血红蛋白(HbA1c)水平和脐带成分在预测胎儿巨大症中的重要性。方法:选择妊娠第36 ~ 37周的90例孕妇(糖尿病患者45例,非糖尿病患者45例),测定其HbA1c水平及超声脐带成分。结果:显著增高(p 45 mmol/mol), 5名女性HbA1c水平正常。45名非糖尿病妇女中有12名(27%)的构造性巨大胎儿的HbA1c水平正常。结论:脐带成分与出生体重之间的关系并非糖尿病组所特有的。通过结合出生体重和脐带成分(如华顿氏果冻)可以更准确地预测巨大胎儿。
{"title":"Hemoglobin A1c and Umbilical Cord Components: Prediction of Fetal Macrosomia in Women with Gestational Diabetes Mellitus","authors":"E. Al-Maini, Layla H Hamad, Nadia D Yassir, S. Hamad","doi":"10.21767/2248-9215.100013","DOIUrl":"https://doi.org/10.21767/2248-9215.100013","url":null,"abstract":"Objectives: This study aims to understand the importance of the glycated hemoglobin (HbA1c ) levels and umbilical cord components in prediction of fetal macrosomia. Methods: Ninety pregnant women (45 women with diabetes mellitus and 45 women with no diabetes mellitus) were chosen to measure the HbA1c level and ultrasound umbilical cord components during their 36th to 37th weeks of pregnancy. Results: Significantly higher (p 45 mmol/mol and 5 women had normal HbA1c levels. 12 of 45 (27%) of non-diabetic women had constitutionally macrosomic fetuses with normal HbA1c levels. Conclusions: The relationship between the umbilical cord components and the birth weight was not specific for the diabetic group. Macrosomic fetuses could be predicted more accurately by the combination of both birth weight and the umbilical cord components (i.e. Wharton’s jelly).","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"239 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76635858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Efficacy of Calotropics procera Leaf Extract and Dyclobos against Ecto-Parasites (Fleas) on Sheep 热风原麻叶提取物和迪克罗威对绵羊体外寄生虫(蚤)的防治效果
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100003
Muhammed Mm, Ibrahim Iaa, M. Chindo, H. Musa
Research was carried out to investigate the Efficacy of Calotropics procera Leaf Extract and Dyclobos against ectoparasites (fleas) on sheep. Effect of Calotropis procera Leaf Extract and Dyclobos on weight, Packed Cell Volume (PCV) and repellence were studied on sheep. A total number of 18 sheep were examined for the presence of fleas by physical examination and were divided into three equal groups as; 'D' (infested control group), 'E' (treated with Dyclobos), F (treated with Calotropis procera), on day 14 of post treatment it was discovered that the PCV level and body weight of treated group (E and F) increased significantly and relative infestation decreased, all the sheep after dipping in Dyclobos diluted water and Calotropis procera spray remained healthy, no adverse effect on sheep was observed. On the other hand, the PCV and body weight of control group decreased on day 14 and the number of fleas per surface area of the body increased.
研究了热风原麻叶提取物和迪克洛沃斯对绵羊体表寄生虫(蚤)的防治效果。研究了牛角豆叶提取物和Dyclobos对绵羊体重、堆积细胞体积(PCV)和驱避力的影响。对18只羊进行蚤体检查,随机分为3组,分别为:“D”(感染对照组)、“E”(Dyclobos处理组)、“F”(Calotropis procera处理组),在处理后第14天发现,处理组(E和F)的PCV水平和体重显著升高,相对感染减少,浸泡Dyclobos稀释水和procotropis喷雾后,所有羊均保持健康,未观察到对羊的不良影响。另一方面,对照组的PCV和体重在第14天下降,每体表面积蚤数增加。
{"title":"Efficacy of Calotropics procera Leaf Extract and Dyclobos against Ecto-Parasites (Fleas) on Sheep","authors":"Muhammed Mm, Ibrahim Iaa, M. Chindo, H. Musa","doi":"10.21767/2248-9215.100003","DOIUrl":"https://doi.org/10.21767/2248-9215.100003","url":null,"abstract":"Research was carried out to investigate the Efficacy of Calotropics procera Leaf Extract and Dyclobos against ectoparasites (fleas) on sheep. Effect of Calotropis procera Leaf Extract and Dyclobos on weight, Packed Cell Volume (PCV) and repellence were studied on sheep. A total number of 18 sheep were examined for the presence of fleas by physical examination and were divided into three equal groups as; 'D' (infested control group), 'E' (treated with Dyclobos), F (treated with Calotropis procera), on day 14 of post treatment it was discovered that the PCV level and body weight of treated group (E and F) increased significantly and relative infestation decreased, all the sheep after dipping in Dyclobos diluted water and Calotropis procera spray remained healthy, no adverse effect on sheep was observed. On the other hand, the PCV and body weight of control group decreased on day 14 and the number of fleas per surface area of the body increased.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86465372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship Between Physico-Chemical Parameters and Reproductive Indices of Parachanna obscura (Gunther 1861) in Eleyele Reservoir, Ibadan, Nigeria 尼日利亚伊巴丹Eleyele水库伞蛾(Gunther 1861)物化参数与繁殖指标的关系
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100036
Olanrewaju An, E. Ajani, Kareem Ok, O. Orisasona
Propagation in fishes depends on the level of gonad maturation which could be influenced by environmental conditions. However, declining water quality due to environmental degradation has been identified as a hindrance to such ecosystem services in aquatic ecosystems. Therefore, size distribution and stages of gonad development of P. obscura in relation to physic-chemical parameters of Eleyele reservoir were studied. Samples of water and Parachanna obscura were collected monthly from five stratified sampling points and fishers catch, respectively for 24 months. Fish were grouped according to sizes (10-15.9, 16.0-19.9 and ≥ 20 cm), and gonads assessed for maturation. Relationship between reproductive indices and physic-chemical parameters were determined using Principal Component Analysis. The size-groups distributions were 10-15.9 cm (28.6%), 16.0-19.9 cm (38.7%) and ≥ 20 cm (32.7%). All the five maturation stages (I-V) were discerned in the female while only stages II-IV were observed in male samples. All the size groups showed strong associations with pH (β=0.346), ammonia (β=0.303) and temperature (β=0.161). Ovary development was significantly influenced by DO (β=0.827), TDS (β=0.777) and TS (β=0.813), while testes maturation was more influenced by temperature (β=0.626). This information will serve as guides for effective ecosystem management through the control of anthropogenic activities on this reservoir and similar water bodies to enhance resource conservation and/or sustainable management.
鱼类的繁殖取决于性腺的成熟程度,而性腺成熟程度又受环境条件的影响。然而,由于环境退化导致的水质下降已被确定为水生生态系统中这种生态系统服务的障碍。因此,本文研究了暗箱紫杉树性腺大小分布和发育阶段与Eleyele储层理化参数的关系。每月从5个分层采样点和渔民捕获的鱼中分别采集水样和暗室鱼样,为期24个月。根据鱼的大小(10-15.9、16.0-19.9和≥20 cm)进行分组,并评估性腺的成熟情况。利用主成分分析法确定了繁殖指标与理化参数之间的关系。尺寸组分布为10 ~ 15.9 cm(28.6%)、16.0 ~ 19.9 cm(38.7%)和≥20 cm(32.7%)。所有5个成熟阶段(I-V)在女性样本中被识别,而在男性样本中只观察到II-IV阶段。各大小组与pH (β=0.346)、氨(β=0.303)和温度(β=0.161)有较强的相关性。DO (β=0.827)、TDS (β=0.777)和TS (β=0.813)对卵巢发育影响显著,而温度对睾丸成熟影响较大(β=0.626)。这些资料将作为通过控制对该水库和类似水体的人为活动进行有效生态系统管理的指南,以加强资源养护和/或可持续管理。
{"title":"Relationship Between Physico-Chemical Parameters and Reproductive Indices of Parachanna obscura (Gunther 1861) in Eleyele Reservoir, Ibadan, Nigeria","authors":"Olanrewaju An, E. Ajani, Kareem Ok, O. Orisasona","doi":"10.21767/2248-9215.100036","DOIUrl":"https://doi.org/10.21767/2248-9215.100036","url":null,"abstract":"Propagation in fishes depends on the level of gonad maturation which could be influenced by environmental conditions. However, declining water quality due to environmental degradation has been identified as a hindrance to such ecosystem services in aquatic ecosystems. Therefore, size distribution and stages of gonad development of P. obscura in relation to physic-chemical parameters of Eleyele reservoir were studied. Samples of water and Parachanna obscura were collected monthly from five stratified sampling points and fishers catch, respectively for 24 months. Fish were grouped according to sizes (10-15.9, 16.0-19.9 and ≥ 20 cm), and gonads assessed for maturation. Relationship between reproductive indices and physic-chemical parameters were determined using Principal Component Analysis. The size-groups distributions were 10-15.9 cm (28.6%), 16.0-19.9 cm (38.7%) and ≥ 20 cm (32.7%). All the five maturation stages (I-V) were discerned in the female while only stages II-IV were observed in male samples. All the size groups showed strong associations with pH (β=0.346), ammonia (β=0.303) and temperature (β=0.161). Ovary development was significantly influenced by DO (β=0.827), TDS (β=0.777) and TS (β=0.813), while testes maturation was more influenced by temperature (β=0.626). This information will serve as guides for effective ecosystem management through the control of anthropogenic activities on this reservoir and similar water bodies to enhance resource conservation and/or sustainable management.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83638673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
IL-17A/IL-17F Double KO Mice Are Resistant to Lipopolysaccharide Induced Endotoxic Shock IL-17A/IL-17F双KO小鼠抵抗脂多糖诱导的内毒素休克
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100014
A. Haque, Chiaki Kajiwara, Tetsuya Matsumoto, Y. Ishii, K. Tateda
Aim: IL-17 family members, IL-17A and -17F are pro-inflammatory cytokines important for host immune modulation in infection and inflammatory diseases conditions. IL-17A has been shown playing a critical role in defense against bacterial infections and IL-17AF deficient mice (DKO) reported less protective. However, the role of IL-17 in endotoxic shock is largely undefined. Materials and Methods: Wild and DKO mice were intraperitoneally lipopolysaccharide (LPS) administered and their survival status was recorded. Neutrophil, -T cells in peritoneal fluids and pro- and anti-inflammatory cytokines, chemokines in serum in endotoxic wild and DKO mice were evaluated. Results: In this study, we observed a higher mortality rate in wild than DKO, in intraperitoneal LPS induced shock. Mortality was observed in correlation with increased pro-inflammatory cytokines and chemokines. We also observed a significant rise of -T cells in peritoneal cavity by LPS in wild, which is known to be a most potent source for IL-17 release and neutrophil recruitment at the site of infection. Neutrophil recruitment was shown as a protective phenomenon in murine in bacterial infection, but the same phenomenon was not observed in LPS induced sepsis. Conclusions: These findings suggest that neutrophil recruitment at infection site may be beneficial in case of direct bacterial exposure, but not in endotoxin exposure to host tissue. This study shades a comprehensive understanding of IL-17A/F functions in acute peritonitis followed by endotoxic shock that could be beneficial for selection of infection for IL-17 directed therapy.
目的:IL-17家族成员IL-17A和-17F是在感染和炎症疾病条件下宿主免疫调节的重要促炎细胞因子。IL-17A已被证明在抵抗细菌感染中起关键作用,IL-17AF缺陷小鼠(DKO)的保护作用较弱。然而,IL-17在内毒素休克中的作用在很大程度上是不明确的。材料与方法:采用腹腔注射脂多糖(LPS)观察野生小鼠和DKO小鼠的生存状况。对内毒素野生小鼠和DKO小鼠腹膜液中中性粒细胞、t细胞和血清中促炎和抗炎细胞因子、趋化因子进行了评价。结果:在本研究中,我们观察到在腹腔内LPS引起的休克中,野生动物的死亡率高于DKO。死亡率与促炎细胞因子和趋化因子的增加有关。我们还观察到野生LPS在腹腔中t细胞的显著增加,这是已知的IL-17释放和中性粒细胞在感染部位募集的最有效来源。中性粒细胞募集在细菌感染小鼠中显示出保护现象,但在LPS诱导的脓毒症中未观察到同样的现象。结论:这些发现表明,感染部位的中性粒细胞募集在细菌直接暴露的情况下可能是有益的,但在内毒素暴露于宿主组织时则不然。这项研究全面了解了IL-17A/F在急性腹膜炎并发内毒性休克中的功能,这可能有助于选择IL-17定向治疗的感染。
{"title":"IL-17A/IL-17F Double KO Mice Are Resistant to Lipopolysaccharide Induced Endotoxic Shock","authors":"A. Haque, Chiaki Kajiwara, Tetsuya Matsumoto, Y. Ishii, K. Tateda","doi":"10.21767/2248-9215.100014","DOIUrl":"https://doi.org/10.21767/2248-9215.100014","url":null,"abstract":"Aim: IL-17 family members, IL-17A and -17F are pro-inflammatory cytokines important for host immune modulation in infection and inflammatory diseases conditions. IL-17A has been shown playing a critical role in defense against bacterial infections and IL-17AF deficient mice (DKO) reported less protective. However, the role of IL-17 in endotoxic shock is largely undefined. Materials and Methods: Wild and DKO mice were intraperitoneally lipopolysaccharide (LPS) administered and their survival status was recorded. Neutrophil, -T cells in peritoneal fluids and pro- and anti-inflammatory cytokines, chemokines in serum in endotoxic wild and DKO mice were evaluated. Results: In this study, we observed a higher mortality rate in wild than DKO, in intraperitoneal LPS induced shock. Mortality was observed in correlation with increased pro-inflammatory cytokines and chemokines. We also observed a significant rise of -T cells in peritoneal cavity by LPS in wild, which is known to be a most potent source for IL-17 release and neutrophil recruitment at the site of infection. Neutrophil recruitment was shown as a protective phenomenon in murine in bacterial infection, but the same phenomenon was not observed in LPS induced sepsis. Conclusions: These findings suggest that neutrophil recruitment at infection site may be beneficial in case of direct bacterial exposure, but not in endotoxin exposure to host tissue. This study shades a comprehensive understanding of IL-17A/F functions in acute peritonitis followed by endotoxic shock that could be beneficial for selection of infection for IL-17 directed therapy.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91375920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
In Vitro Ovicidal and Larvicidal Activity of Aqueous and Methanolic Extracts of Ziziphus Mucronata Barks Against Haemonchus Contortus 酸枣树皮水提液和甲醇提液体外杀卵、杀幼虫活性的研究
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100001
O. Ngaradoum, J. Kagira, S. Karanja, K. Kipyegon, N. Maina
Haemonchus contortus is one of the most pathogenic nematode parasites in small ruminants’ worldwide. Anthelmintic resistance and high cost of drugs has prompted evaluation of medicinal plant extracts which can be used as alternative drugs. The objective of this study was to evaluate in vitro ovicidal and larvicidal activity of aqueous and methanolic extracts of Ziziphus mucronata barks against H. contortus stages isolated from a sheep in Kenya. Barks of Z. mucronata were collected from Chad, air-dried, ground and extracted with methanol and distilled water. The crude extracts were qualitatively screened for phytochemicals using standard methods. The anthelmintic activities of the extracts were evaluated using the egg hatch assay and larval mortality assay. The percentage extraction yields for methanol aqueous and aqueous methanol were 4.5% and 2.6%, respectively. The phytochemicals found in both extracts were saponins, tannins, glycosides, flavonoids and steroids. The results showed that methanolic extract had a significantly (p<0.05) higher activity with IC50 value of 3.9 mg/ml as compared with aqueous extract which had IC50 value of 14.7 mg/ml. In larval mortality assay, the methanolic extract had significantly (p<0.05) higher EC50 (7.5 mg/ml) than that of aqueous extract (2.7 mg/ml). The effects of Albendazole on egg hatchability inhibition and larval motility was significantly (p<0.05) higher than that of the two extracts. All the assays showed extract concentration dependent response. In conclusion, this study has shown that Z. mucronata extracts have anthelmintic activity on eggs and larvae of H. contortus parasite. The activity could be related to the presence of phytochemicals such as saponins and tannins. The effects of larval mortality were higher compared to that of egg hatchability. Therefore, extracts from Z. mucronata can be developed further as novel anthelmintic drug for control of H. contortus and hence improve production of small ruminants.
弯血蜱是世界上小反刍动物中致病性最强的线虫寄生虫之一。药用植物提取物对驱虫药的耐药性和高昂的药物成本促使人们对其进行评价,以作为替代药物。本研究的目的是评价紫穗槐树皮的水提物和甲醇提物对肯尼亚绵羊中分离的弯纹夜蛾的体外杀卵和杀幼虫活性。采自乍得的麻竹树皮,风干、研磨、甲醇和蒸馏水提取。采用标准方法对粗提物进行植物化学成分的定性筛选。采用虫卵孵化试验和幼虫死亡试验对提取物的驱虫活性进行了评价。甲醇水溶液和甲醇水溶液的提取率分别为4.5%和2.6%。在两种提取物中发现的植物化学物质是皂苷、单宁、糖苷、类黄酮和类固醇。结果表明:乙醇提取物的IC50值为3.9 mg/ml,显著高于水提液(14.7 mg/ml);在幼虫死亡试验中,甲醇提取物的EC50值(7.5 mg/ml)显著高于水提取物(2.7 mg/ml) (p<0.05)。阿苯达唑对卵孵化率抑制和幼虫活力的影响显著(p<0.05)高于两种提取物。所有试验均表现出提取物浓度依赖性。综上所述,本研究表明,麻竹提取物对弯纹夜蛾虫卵和幼虫具有驱虫活性。这种活性可能与植物化学物质如皂苷和单宁的存在有关。幼虫死亡率的影响大于卵的孵化率。因此,该提取物可进一步开发为一种新型驱虫药,用于防治弯腹鼠,从而提高小反刍动物的产量。
{"title":"In Vitro Ovicidal and Larvicidal Activity of Aqueous and Methanolic Extracts of Ziziphus Mucronata Barks Against Haemonchus Contortus","authors":"O. Ngaradoum, J. Kagira, S. Karanja, K. Kipyegon, N. Maina","doi":"10.21767/2248-9215.100001","DOIUrl":"https://doi.org/10.21767/2248-9215.100001","url":null,"abstract":"Haemonchus contortus is one of the most pathogenic nematode parasites in small ruminants’ worldwide. Anthelmintic resistance and high cost of drugs has prompted evaluation of medicinal plant extracts which can be used as alternative drugs. The objective of this study was to evaluate in vitro ovicidal and larvicidal activity of aqueous and methanolic extracts of Ziziphus mucronata barks against H. contortus stages isolated from a sheep in Kenya. Barks of Z. mucronata were collected from Chad, air-dried, ground and extracted with methanol and distilled water. The crude extracts were qualitatively screened for phytochemicals using standard methods. The anthelmintic activities of the extracts were evaluated using the egg hatch assay and larval mortality assay. The percentage extraction yields for methanol aqueous and aqueous methanol were 4.5% and 2.6%, respectively. The phytochemicals found in both extracts were saponins, tannins, glycosides, flavonoids and steroids. The results showed that methanolic extract had a significantly (p<0.05) higher activity with IC50 value of 3.9 mg/ml as compared with aqueous extract which had IC50 value of 14.7 mg/ml. In larval mortality assay, the methanolic extract had significantly (p<0.05) higher EC50 (7.5 mg/ml) than that of aqueous extract (2.7 mg/ml). The effects of Albendazole on egg hatchability inhibition and larval motility was significantly (p<0.05) higher than that of the two extracts. All the assays showed extract concentration dependent response. In conclusion, this study has shown that Z. mucronata extracts have anthelmintic activity on eggs and larvae of H. contortus parasite. The activity could be related to the presence of phytochemicals such as saponins and tannins. The effects of larval mortality were higher compared to that of egg hatchability. Therefore, extracts from Z. mucronata can be developed further as novel anthelmintic drug for control of H. contortus and hence improve production of small ruminants.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88965521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The Effect of Oxytocin and Some Chemicals in a Rat Model of Absence Epilepsy (WAG/RÄ°J) 催产素及相关化学物质对失智性癫痫大鼠模型的影响(WAG/RÄ°J)
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100010
Z. Çakır, A. Filiz, S. Gulturk, E. Ozdemir
Absence epilepsy characterized by sudden and brief unconsciousness is a form of idiopathic generalized epilepsy that occurs in childhood. In this study, 104 Wag/Rij male rats were used. Animals were divided into 13 groups, oxytocine 80 nmol/kg, valproic acid 300 mg/kg, ethosuximide 200 mg/kg, magnesium sulfate 600 mg/kg, methylprednisolone 20 mg/kg and double-triple combination of these chemicals were intraperitoneally given to the groups. In all one drug administered groups, we recorded significant decrease in mean SWD. In addition to this, we observed a stronger reduction in mean SWD when the drugs were combined with oxytocine in double combination groups. For triple combination groups, when methylprednisolone was added to the groups, larger changes were seen in mean SWD (p<0.05). We conclude that oxytocine decrease the number of absence seizures, and the combination of oxytocin with other drugs increase anti-epileptic effects of the drugs.
失神癫痫的特点是突然和短暂的无意识是一种形式的特发性全身性癫痫,发生在儿童。本研究选用Wag/Rij雄性大鼠104只。将动物分为13组,分别腹腔注射催产素80 nmol/kg、丙戊酸300 mg/kg、乙砜胺200 mg/kg、硫酸镁600 mg/kg、甲基强的松龙20 mg/kg及两三联用。在所有给药组中,我们记录到平均SWD显著降低。除此之外,我们还观察到,在双联合组中,当药物与催产素联合使用时,平均SWD的降低幅度更大。对于三联用药组,加甲强的松龙组平均SWD变化较大(p<0.05)。我们认为催产素可以减少失神发作的次数,并且与其他药物合用可以增强药物的抗癫痫作用。
{"title":"The Effect of Oxytocin and Some Chemicals in a Rat Model of Absence Epilepsy (WAG/RÄ°J)","authors":"Z. Çakır, A. Filiz, S. Gulturk, E. Ozdemir","doi":"10.21767/2248-9215.100010","DOIUrl":"https://doi.org/10.21767/2248-9215.100010","url":null,"abstract":"Absence epilepsy characterized by sudden and brief unconsciousness is a form of idiopathic generalized epilepsy that occurs in childhood. In this study, 104 Wag/Rij male rats were used. Animals were divided into 13 groups, oxytocine 80 nmol/kg, valproic acid 300 mg/kg, ethosuximide 200 mg/kg, magnesium sulfate 600 mg/kg, methylprednisolone 20 mg/kg and double-triple combination of these chemicals were intraperitoneally given to the groups. In all one drug administered groups, we recorded significant decrease in mean SWD. In addition to this, we observed a stronger reduction in mean SWD when the drugs were combined with oxytocine in double combination groups. For triple combination groups, when methylprednisolone was added to the groups, larger changes were seen in mean SWD (p<0.05). We conclude that oxytocine decrease the number of absence seizures, and the combination of oxytocin with other drugs increase anti-epileptic effects of the drugs.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85379268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Heavy Metal Tolerance Level (MIC) and Bioremediation Potentials of Pseudomonas aeruginosa Isolated from Makera-Kakuri Industrial Drain in Kaduna, Nigeria 尼日利亚卡杜纳Makera-Kakuri工业排水中铜绿假单胞菌重金属耐受水平及生物修复潜力评价
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100028
A. Haroun, Kamaluddeen Kk, I. Alhaji, Y. Magaji, E. E. Oaikhena
Bacterial strains isolated from the Kakuri drain were characterized and subjected to various concentrations of heavy metal salts and their ability to tolerate the heavy metals (Minimum Inhibitory Concentration-MIC) was determined. This shows their ability to tolerate and survive in environments with high levels of heavy metal salts. Eight(8) heavy metals were considered , and included ; Cobalt Chloride (CoCl2), Cadmium Chloride (CdCl2),Copper Sulphate (CuSo4), Mercury Chloride (HgCl2), Nickel Chloride (NiCl2), Potassium Dichromate (K2Cr207), Lead Chloride (PbCl2) and Zinc Sulphate (ZnS04). Strains were subjected to varied millimolar concentrations (1, 2, 5, 10, 20, 30 and 50 mM). Positive and Negative controls were set up to a certain the tolerance level amongst the strains. 100% growth of all strains was observed at 1 mM concentration, while 100% growth was recorded with CuS04, ZnS04 and HgCl2. Most strains were inhibited or could not tolerate the salts at 10 mM concentration, with the exception of ZnS04, PbCl2, and CdCl2. No growth (100% inhibition) was noticed on plates with 20, 30, 40 or 50 mM concentrations. It therefore shows that the strains isolated from the kakuri drain could withstand presence of heavy metals salts up to a concentration of 10 mM.
对从Kakuri下水道中分离的细菌进行了表征,并对其进行了不同浓度重金属盐的处理,测定了其对重金属的耐受能力(最低抑制浓度- mic)。这表明它们有能力在重金属盐含量高的环境中忍受和生存。八(8)种重金属被考虑在内;氯化钴(CoCl2)、氯化镉(CdCl2)、硫酸铜(CuSo4)、氯化汞(HgCl2)、氯化镍(NiCl2)、重铬酸钾(K2Cr207)、氯化铅(PbCl2)和硫酸锌(ZnS04)。菌株受到不同的毫摩尔浓度(1、2、5、10、20、30和50 mM)。阳性对照和阴性对照在菌株间设置一定的耐受性水平。在1 mM浓度下,所有菌株的生长均为100%,而在CuS04、ZnS04和HgCl2浓度下,所有菌株的生长均为100%。除ZnS04、PbCl2和CdCl2外,大多数菌株对10 mM浓度的盐均有抑制或不耐受。在20、30、40或50 mM浓度的培养皿上没有发现生长(100%抑制)。因此,这表明从kakuri排水管中分离出的菌株可以承受高达10毫米浓度的重金属盐的存在。
{"title":"Evaluation of Heavy Metal Tolerance Level (MIC) and Bioremediation Potentials of Pseudomonas aeruginosa Isolated from Makera-Kakuri Industrial Drain in Kaduna, Nigeria","authors":"A. Haroun, Kamaluddeen Kk, I. Alhaji, Y. Magaji, E. E. Oaikhena","doi":"10.21767/2248-9215.100028","DOIUrl":"https://doi.org/10.21767/2248-9215.100028","url":null,"abstract":"Bacterial strains isolated from the Kakuri drain were characterized and subjected to various concentrations of heavy metal salts and their ability to tolerate the heavy metals (Minimum Inhibitory Concentration-MIC) was determined. This shows their ability to tolerate and survive in environments with high levels of heavy metal salts. Eight(8) heavy metals were considered , and included ; Cobalt Chloride (CoCl2), Cadmium Chloride (CdCl2),Copper Sulphate (CuSo4), Mercury Chloride (HgCl2), Nickel Chloride (NiCl2), Potassium Dichromate (K2Cr207), Lead Chloride (PbCl2) and Zinc Sulphate (ZnS04). Strains were subjected to varied millimolar concentrations (1, 2, 5, 10, 20, 30 and 50 mM). Positive and Negative controls were set up to a certain the tolerance level amongst the strains. 100% growth of all strains was observed at 1 mM concentration, while 100% growth was recorded with CuS04, ZnS04 and HgCl2. Most strains were inhibited or could not tolerate the salts at 10 mM concentration, with the exception of ZnS04, PbCl2, and CdCl2. No growth (100% inhibition) was noticed on plates with 20, 30, 40 or 50 mM concentrations. It therefore shows that the strains isolated from the kakuri drain could withstand presence of heavy metals salts up to a concentration of 10 mM.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81130925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Phytochemical and Anthelmintic Investigation of Leaves of Glochidion ellipticum Linn Glochidion ellipticum Linn .叶片的植物化学和驱虫学研究
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100009
Jawarkar Sv, Kane Sr
Worm infections remain a major constraint to livestock productivity across all agro-ecological Zones. Now, the main mode for control of gastrointestinal parasites is based on the synthetic anthelmintic. However, wide spread increase of anthelmintic resistance, scarcity and high cost especially to farmers of low income in developing countries led to the need of other alternative helminth control methods. Among other alternative methods, there is considerable and expanding interest in traditional herbal de wormers. In present communication methanolic and aqueous extracts of leaves of Glochidion ellipticum Linn. Flem were investigated for their anthelmintic activity against Pheretima posthuma and Ascardia galli. Different concentrations were used in the assay, which involved paralysis and death time of the worms. Both the extracts showed significant anthelmintic activity.
蠕虫感染仍然是所有农业生态区牲畜生产力的主要制约因素。目前,控制胃肠道寄生虫的主要模式是基于合成驱虫药。然而,驱虫剂抗药性的普遍增加、稀缺性和高成本,特别是对发展中国家低收入农民来说,导致需要其他替代驱虫方法。在其他替代方法中,人们对传统草药的兴趣越来越大。本文研究了仙桃叶的醇提物和水提物。研究了其对后灰蚜和加利蛔虫的杀虫活性。实验中使用了不同的浓度,这涉及到蠕虫的麻痹和死亡时间。两种提取物均有显著的驱虫活性。
{"title":"Phytochemical and Anthelmintic Investigation of Leaves of Glochidion ellipticum Linn","authors":"Jawarkar Sv, Kane Sr","doi":"10.21767/2248-9215.100009","DOIUrl":"https://doi.org/10.21767/2248-9215.100009","url":null,"abstract":"Worm infections remain a major constraint to livestock productivity across all agro-ecological Zones. Now, the main mode for control of gastrointestinal parasites is based on the synthetic anthelmintic. However, wide spread increase of anthelmintic resistance, scarcity and high cost especially to farmers of low income in developing countries led to the need of other alternative helminth control methods. Among other alternative methods, there is considerable and expanding interest in traditional herbal de wormers. In present communication methanolic and aqueous extracts of leaves of Glochidion ellipticum Linn. Flem were investigated for their anthelmintic activity against Pheretima posthuma and Ascardia galli. Different concentrations were used in the assay, which involved paralysis and death time of the worms. Both the extracts showed significant anthelmintic activity.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"629 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74740295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Isolation and Characterization of Palm Wine Strains of Saccharomyces cerevisiae Potentially Useful as Bakery Yeasts 应用于烘焙酵母的酿酒酵母菌棕榈酒菌株的分离与鉴定
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100011
O. O. Olowonibi
A total of 12 yeast isolates from palm wine collected from various locations in Anyigba and its environs were selected for their leavening activities and were identified. The yeasts demonstrated high levels of leavening activities between 82-94. 7% as compared with commercial yeast (100%). Those that showed good leavening activities and were positive in assimilation tests for glucose, sucrose, maltose, galactose, lactose, raffinose and negative for lactose, xylose, lysine, nitrate and urea, were identified as Saccharomyces cerevisiae, while those that were positive in assimilating nitrate and lysine were identified as Candida spp. The yeasts were further assessed for attributes relevant to bakery operations such as production of CO2, temperature tolerance, ethanol tolerance, osmotic tolerance and flocculence. The rate of production of CO2 from different sugars ranges from 0.043 to 0.078 ml/min. The levels of CO2 produced by the palm yeasts in the presence of maltose were appreciably lower than that of the commercial yeast. The yeasts were able to grow at temperatures 30, 37°C and a few grew at 45°C though very sparely. Also, the yeast were tolerant to 8 and 10% ethanol but had very low tolerance to 13% ethanol. There was an appreciable tolerance to 6 and 8% NaCl but a few numbers sparingly at 10% NaCl. Some of the isolates demonstrated flocculation ability. In general, the studies indicate that Saccharomyces cerevisiae strains from palm wine samples from Kogi State have good properties for industrial usefulness in bakery operations.
对从安尼格巴及周边不同地点采集的棕榈酒中分离得到的12株酵母进行了发酵活性鉴定。酵母在82-94年间表现出较高的发酵活性。与商业酵母(100%)相比,减少了7%。发酵活性良好且对葡萄糖、蔗糖、麦芽糖、半乳糖、乳糖、棉子糖同化试验呈阳性,对乳糖、木糖、赖氨酸、硝酸盐和尿素同化试验呈阴性的酵母被鉴定为酿酒酵母菌,而对硝酸盐和赖氨酸同化试验呈阳性的酵母被鉴定为念珠菌。乙醇耐受性,渗透性和絮凝性。不同糖类产生CO2的速率为0.043 ~ 0.078 ml/min。在麦芽糖存在的情况下,棕榈酵母产生的二氧化碳水平明显低于商业酵母。这些酵母能够在30,37°C的温度下生长,少数酵母能够在45°C的温度下生长,尽管非常稀少。此外,酵母对8%和10%乙醇的耐受性很好,但对13%乙醇的耐受性很低。对6%和8% NaCl的耐受性较好,但对10% NaCl的耐受性较弱。部分菌株表现出絮凝能力。总的来说,研究表明,来自科吉州棕榈酒样品的酿酒酵母菌菌株具有良好的性能,可用于烘焙业务的工业用途。
{"title":"Isolation and Characterization of Palm Wine Strains of Saccharomyces cerevisiae Potentially Useful as Bakery Yeasts","authors":"O. O. Olowonibi","doi":"10.21767/2248-9215.100011","DOIUrl":"https://doi.org/10.21767/2248-9215.100011","url":null,"abstract":"A total of 12 yeast isolates from palm wine collected from various locations in Anyigba and its environs were selected for their leavening activities and were identified. The yeasts demonstrated high levels of leavening activities between 82-94. 7% as compared with commercial yeast (100%). Those that showed good leavening activities and were positive in assimilation tests for glucose, sucrose, maltose, galactose, lactose, raffinose and negative for lactose, xylose, lysine, nitrate and urea, were identified as Saccharomyces cerevisiae, while those that were positive in assimilating nitrate and lysine were identified as Candida spp. The yeasts were further assessed for attributes relevant to bakery operations such as production of CO2, temperature tolerance, ethanol tolerance, osmotic tolerance and flocculence. The rate of production of CO2 from different sugars ranges from 0.043 to 0.078 ml/min. The levels of CO2 produced by the palm yeasts in the presence of maltose were appreciably lower than that of the commercial yeast. The yeasts were able to grow at temperatures 30, 37°C and a few grew at 45°C though very sparely. Also, the yeast were tolerant to 8 and 10% ethanol but had very low tolerance to 13% ethanol. There was an appreciable tolerance to 6 and 8% NaCl but a few numbers sparingly at 10% NaCl. Some of the isolates demonstrated flocculation ability. In general, the studies indicate that Saccharomyces cerevisiae strains from palm wine samples from Kogi State have good properties for industrial usefulness in bakery operations.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83112377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Allelopathic Effect of Convolvulus arvensis L. Extracts on The Phytohormones and Cytological Processes of Zea mays L. Seeds 旋花提取物对玉米种子激素和细胞学过程的化感作用
Pub Date : 2017-01-01 DOI: 10.21767/2248-9215.100015
Serap Sunar, G. Agar
The effects of different methanol extracts of Convolvulus arvensis on phytohormones (indole acetic acid (IAA), gibberellic acid (GA), abscisic acid (ABA) and salicylic acid (SA)) levels of corn were investigated. It was observed that all concentrations of methanol extracts (50 µl, 75 µl, 100 µl) of roots, stems and leaves of C. arvensis decreased the mitotic index and also caused abnormalities in chromosomes. On the other hand, phytohormone levels have been changed by application of different extracts at various concentrations. Compared with the control, GA levels decreased significantly whereas ABA levels increased in all the application groups. SA and IAA levels showed changes depending upon applied extracts and their concentrations.
研究了不同甲醇提取物对玉米体内激素吲哚乙酸(IAA)、赤霉素酸(GA)、脱落酸(ABA)和水杨酸(SA)水平的影响。结果表明,不同浓度的甲醇提取物(50µl、75µl、100µl)均可降低金针桃根、茎、叶的有丝分裂指数,并引起染色体异常。另一方面,应用不同浓度的不同提取物可以改变植物激素水平。与对照相比,各施用组GA水平显著降低,ABA水平显著升高。SA和IAA水平随提取物及其浓度的变化而变化。
{"title":"Allelopathic Effect of Convolvulus arvensis L. Extracts on The Phytohormones and Cytological Processes of Zea mays L. Seeds","authors":"Serap Sunar, G. Agar","doi":"10.21767/2248-9215.100015","DOIUrl":"https://doi.org/10.21767/2248-9215.100015","url":null,"abstract":"The effects of different methanol extracts of Convolvulus arvensis on phytohormones (indole acetic acid (IAA), gibberellic acid (GA), abscisic acid (ABA) and salicylic acid (SA)) levels of corn were investigated. It was observed that all concentrations of methanol extracts (50 µl, 75 µl, 100 µl) of roots, stems and leaves of C. arvensis decreased the mitotic index and also caused abnormalities in chromosomes. On the other hand, phytohormone levels have been changed by application of different extracts at various concentrations. Compared with the control, GA levels decreased significantly whereas ABA levels increased in all the application groups. SA and IAA levels showed changes depending upon applied extracts and their concentrations.","PeriodicalId":12012,"journal":{"name":"European Journal of Experimental Biology","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78309145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
期刊
European Journal of Experimental Biology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1