Adjuvant effect of an extract from Cochinchina momordica seeds on the immune responses to ovalbumin in mice     

Chenwen Xiao  Songhua Hu  Zahid Iqbal Rajput 《Frontiers of Agriculture in China》2007,1(1):90-95

The seed of the Momordica cochinchinensis (Lour.) Spreng as a traditional Chinese medicine has been utilized in China for more than 1 200 years. It is traditionally used for the treatment of inflammatory swelling, scrofula, tinea, diarrhea as well as suppurative skin infections such as sore, carbuncles, furuncles and boils in both humans and animals. In this study, an extract from Cochinchina momordica seeds (ECMS) is evaluated for its adjuvant effect and safety. The results suggest that when co-administered with ECMS in Balb/c mice, ovalbumin (OVA, 10 μg) may induce significantly higher specific antibody production than OVA used alone (P < 0.05). Analysis of antibody isotypes indicates that the ECMS can promote the production of both IgG₁ and IgG_2a, but favor the IgG_2a. Splenocyte proliferative responses to concanavalin A, lipopolysaccharides or OVA are significantly higher in mice immunized with OVA mixed with ECMS than immunized with OVA alone or mixed with aluminum hydroxide (P < 0.05). No local reactions and negative effects on the body weight gain occurred after the injection of OVA mixed with various amounts of ECMS in mice. Therefore, the ECMS is safe for injection and can be used as a potential vaccine adjuvant biasing the production of IgG_2a in mice.  相似文献   

Bovine brucellosis – a comprehensive review     

Sandip Kumar Khurana  Anju Sehrawat  Ruchi Tiwari  Minakshi Prasad  Baldev Gulati  Muhammad Zubair Shabbir  Rajesh Chhabra  Kumaragurubaran Karthik  Shailesh Kumar Patel  Mamta Pathak  Mohd. Iqbal Yatoo  Vivek Kumar Gupta  Kuldeep Dhama  Ranjit Sah  Wanpen Chaicumpa 《The Veterinary quarterly》2021,41(1):61

Brucellosis is a zoonotic disease of great animal welfare and economic implications worldwide known since ancient times. The emergence of brucellosis in new areas as well as transmission of brucellosis from wild and domestic animals is of great significance in terms of new epidemiological dimensions. Brucellosis poses a major public health threat by the consumption of non-pasteurized milk and milk products produced by unhygienic dairy farms in endemic areas. Regular and meticulous surveillance is essentially required to determine the true picture of brucellosis especially in areas with continuous high prevalence. Additionally, international migration of humans, animals and trade of animal products has created a challenge for disease spread and diagnosis in non-endemic areas. Isolation and identification remain the gold standard test, which requires expertise. The advancement in diagnostic strategies coupled with screening of newly introduced animals is warranted to control the disease. Of note, the diagnostic value of miRNAs for appropriate detection of B. abortus infection has been shown. The most widely used vaccine strains to protect against Brucella infection and related abortions in cattle are strain 19 and RB51. Moreover, it is very important to note that no vaccine, which is highly protective, safe and effective is available either for bovines or human beings. Research results encourage the use of bacteriophage lysates in treatment of bovine brucellosis. One Health approach can aid in control of this disease, both in animals and man.  相似文献   

人参茎叶总皂苷联合亚硒酸钠对猪伪狂犬病灭活疫苗免疫的增强作用     

MAQBOOL Babar  王勇  崔雪梅  袁丽佳  胡松华 《中国兽医学报》2021,(2):231-235,272

为了探讨人参茎叶总皂苷(ginseng stem-leaf saponins,GSLS)联合亚硒酸钠(Na2SeO3,简称Se)对伪狂犬病病毒(PRV)灭活疫苗免疫的增强作用,本试验给小鼠口服GSLS后,接种添加了Se的PRV灭活疫苗,并检测免疫后小鼠血清中PRV gB抗体及其亚类(IgG1和IgG2a)水平、淋巴细胞增殖水平、淋巴细胞分泌细胞因子(IFN-γ、IL-2、IL-4和IL-6)水平以及野毒(fPRV)攻毒后小鼠的存活率。结果显示,与仅仅免疫PRV灭活疫苗的小鼠相比,口服GSLS联合疫苗中添加Se(GSLS-Se)能够显著提高小鼠血清中PRV gB抗体及其亚类(IgG1和IgG2a)水平,淋巴细胞增殖水平和细胞因子(IFN-γ、IL-2和IL-6)水平。此外,GSLS-Se还提高了免疫小鼠对野毒感染的抵抗力。结果表明,GSLS-Se对PRV灭活疫苗具有免疫增强作用,值得在本动物上进一步研究。  相似文献   

THE STATE OF POLLUTION LEVELS OF KARACHI HARBOUR AND ADJOINING COASTAL WATER     

Akhtar  Waseem  Ali  Iqbal  Zaidi  S. S. H.  Jilani  Seema 《Water, air, and soil pollution》1997,94(1-2):99-107

A study was carried out recently to determine the pollution level of waters in the Karachi harbour and adjoining backwaters. Nine locations were selected, four in the backwaters, two on the seaside, and three in the main navigable channel. Four of these locations were deliberately selected to coincide with those of a previous study conducted in 1982 by Pakistan Council of Scientific and Industrial Research (PCSIR) so that the values for the concentration of different pollutants could be compared. Analysis was conducted for pH, bicarbonates, Total Solids, Volatile matter in Total Solids, Chlorides, Sulphates, Calcium, Magnesium, Sodium and Potassium. The results indicate that the composition of sea water as far as the concentration of above constituents is concerned has not changed much since the time of the PCSIR study, viz 1982, except that the organic matter concentration has increased. The reasons for this increase in organic loading and its possible impact are discussed in this paper.  相似文献   

Metabolism of O-ethyl S,S-dipropyl phosphorodithioate (Mocap) in bean and corn plants     

R E Menzer  Z M Iqbal  G R Boyd 《Journal of agricultural and food chemistry》1971,19(2):351-356

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Allelic Variation within Single Podded Gene Characterized by STMS Marker in Chickpea     

Chickpea 《分子植物育种》2007,5(2):252-254

Chickpea （Cicer arietinum L.）, is an important grain legume crop throughout the world especially in developing countries. However the average yield worldwide is considered to be lower than its potential yield （Singh et al., 1994）. The average yield of chickpea is much lower in Pakistan, which is about 5500-650 kg/hm^2 due to various abiotic and biotic stresses （Shah et al., 2005）.  相似文献   

Serum cannabidiol,tetrahydrocannabinol (THC), and their native acid derivatives after transdermal application of a low-THC Cannabis sativa extract in beagles     

Mary Beth Hannon  Kelly A. Deabold  Bryce N. Talsma  Alex Lyubimov  Asif Iqbal  Alexander Zakharov  Lauri Jo Gamble  Joseph J. Wakshlag 《Journal of veterinary pharmacology and therapeutics》2020,43(5):508-511

Cannabinoids hold promise for treating health problems related to inflammation and chronic pain in dogs, in particular cannabidiol (CBD), and its native acid derivative cannabidiolic acid (CBDA). Information regarding systemic delivery of cannabinoids through transdermal routes is sparse. The purpose of this study was to determine pharmacokinetics of transdermal administration of a low-THC Cannabis sativa extract in healthy dogs. Six purpose-bred research beagles were treated with a transdermal CBD-CBDA-rich extract, and serum concentrations of CBD, CBDA, tetrahydrocannabinol (THC), and its acid derivative tetrahydrocannabinolic acid (THCA) were examined prior to and at the end of weeks 1 and 2. A 4 mg/kg dose of total cannabinoids twice daily resulted in appx 10 ng/ml of CBD, 21–32 ng/ml of CBDA, trace amounts of THCA, and unquantifiable amounts of THC in serum at the end of weeks 1 and 2 of treatment. Results showed that CBDA and THCA were absorbed better systemically than CBD or THC.  相似文献   

Soil Application of Boron Improves the Tillering,Leaf Elongation,Panicle Fertility,Yield and its Grain Enrichment in Fine-Grain Aromatic Rice     

Atique-ur-Rehman  Ahmad Nawaz  Abdul Rehman  Saba Iqbal 《Journal of plant nutrition》2015,38(3):338-354

Boron (B) is one of the essential micronutrients having a specific role, particularly during reproductive phase, in rice. In a previous experiment on aerobic rice, panicle sterility was noted as one of the major challenges. This experiment was conducted to evaluate the influence of soil-applied B on tillering, panicle sterility, water relations, and grain enrichment in fine-grain aromatic rice cultivars ‘Super Basmati’ and ‘Shaheen Basmati’. Boron was soil applied at 0.50, 0.75, 1, 1.25, and 1.50 kg ha^?1 while the control treatment did not receive B. Rate of leaf emergence and elongation and tiller appearance were significantly improved by B application. Likewise, B application also improved the leaf chlorophyll contents and water relations in both rice cultivars. Substantial improvement in kernel yield and yield contributing traits was also observed by B application owing to decrease in panicle sterility. A linear increase in leaf and kernel B contents was observed with increase in B application rate. However, the range for an optimum B application rate is very narrow and increase of B application beyond 1 kg ha^?1 was toxic. In conclusion, soil application of B is an effective way to decrease panicle sterility and increase the kernel yield and grain B enrichment in rice.  相似文献   

Potassium isotherm partitioning based on modified quantity‐intensity relation and potassium buffering characterization of soils of North India     

Shabir A. Bangroo  Nayar A. Kirmani  Mohammad A. Bhat  Javaid A. Wani  Asif M. Iqbal  Zahoor A. Dar  Syed Sheraz Mahdi  Ajaz A. Malik 《植物养料与土壤学杂志》2021,184(1):112-122

Background : Potassium (K) availability in soil and plant uptake is restrained by the dynamic interactions among the different pools of K. Aims : To understand these interactions, a study was undertaken to assess the quantity–intensity (Q/I) and buffering characteristics of rainfed maize (Zea mays L.) growing soils. Ten contrasting soils were evaluated for K partitioning changes in exchangeable K (ΔEK) and non‐exchangeable K (ΔNEK) pools in the soil‐solution phase and buffering characteristics using a modified version of Q/I approach. Results : The partitioned Q/I isotherms showed strong adsorption with the increase in K concentration ratio (CR^K) and the changes due to ΔEK were higher than changes due to ΔNEK. Total buffering capacity (PBC^K) significantly correlated (r = 0.92, p <0.01) with clay content with a major share contributed by buffering capacity owing to non‐exchangeable K ( ${\mathrm{PBC}}_{\Delta \mathrm{NEK}}^K$) rather than exchangeable K ( ${\mathrm{PBC}}_{\Delta \mathrm{EK}}^K$). The fixation capacity (β) factor, the magnitude of added K converted into a non‐exchangeable pool, ranged from 41 to 63%, whereas release (α) factor, the magnitude of added K converted to the exchangeable pool, ranged from 19 to 36%. Both threshold solution K (CK_r) and threshold exchangeable K (EK_r) values were found to be high in Satran clay loam (S2) and lower in Doon silty clay loam (S3) soils. The equilibrium exchangeable K (EK_o) was found close to minimum exchangeable K (E_min) in Doon silty clay loam (S3) and Babaweyl sandy clay loam (S1) soils and overall E_min constituted about 8.94 to 0.57% of the EK_o. Conclusion : It may be concluded that K Q/I isotherm partitioning provides a valuable insight to assess the dynamic relations. The ratio of α/β (K recharge index) could be used to evaluate the K enrichment capacity of soil to K additions while EK_r and E_min can be potentially useful in the elucidation of exchangeable K as K fertility index especially in soils with poor K fertilizer management.  相似文献   

Genetic diversity of Pakistan wheat germplasm as revealed by RAPD markers     

Iftikhar?Ahmad Khan  Faisal?Saeed AwanEmail author  Aftab?Ahmad  Yong-Bi?Fu  Ahsan?Iqbal 《Genetic Resources and Crop Evolution》2005,52(3):239-244

Wheat breeding in Pakistan started in 1930s before partition in the United India and so far has released more than 68 cultivars, but no systematic analyses of the genetic diversity of Pakistan wheat have been made. Twenty Pakistan wheat cultivars released from 1933 to 2002 were examined for genetic diversity and relationships using random amplified polymorphic DNA (RAPD) markers. Forty-two RAPD primers were applied and 184 polymorphic bands were generated for each cultivar. Most of the cultivars were genetically interrelated, although six of them displayed some genetic distinctness. The RAPD variation observed among these cultivars was low. Only 40.7% of the total scorable bands were polymorphic, and 26.1% of the polymorphic bands were observed most frequently (f = 0.95) among the 20 cultivars. The proportions of polymorphic bands for each cultivar ranged from 0.67 in ‘Yecora’ to 0.84 in ‘C-250’ with an average of 0.76. About 1.4% of the RAPD variation might have been fixed over the 69 years of wheat breeding, but such fixation was not statistically significant. These results are significant for future improvement and conservation of Pakistan wheat.  相似文献