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Insect Science 2010年第2期17卷 112-120页

作者： Omkar, Pooja Pandey Geetanjali Mishra Department of Zoology University of Lucknow Lucknow-226 007 India

Age-specific mating incidence, sexual maturation and effect of age at mating on reproductive performance of the Parthenium beetle, Zygogramma bicolorata Pallister, was studied. Based on 50% mating incidence the calculated age of sexual maturation of males and females was 10.5 and 11.1 days, respectively, which was not statistically signifi- cant. However, on the basis of age at first mating, that is, sexual maturity, females matured 2 days earlier than males. Fecundity, pre-oviposition, oviposition and post-oviposition period and female longevity appear to be influenced by female age at mating with repro- ductive performance peaking at 30 days. On the other hand, egg viability was influenced by male age and was highest when males mated at the age of 40 days. To summarise, egg production and timing of egg deposition was female age-dependent, whereas egg fertility was male age-dependent. It was also observed that females mated at a later age and laid a higher number of eggs immediately after mating than did earlier mated females. This was ostensibly in a bid to increase fitness by maximizing reproductive output in the reduced life span available. This is the first investigation on the effect of age of females at mating on reproduction in this beetle.

关键词： egg viability lifetime fecundity maternal age paternal age Zygogramma bicolorata

Quantum chemical analysis for the formation of glycine in the interstellar medium

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Research in Astronomy and Astrophysics 2013年第8期13卷 912-920页

作者： Amresh Singh Shivani Alka Misra Poonam Tandon Department of Mathematics & Astronomy University of Lucknow Department of Physics University of Lucknow

Glycine （C2H5NO2） was the first amino acid to be detected in space by the stardust space probe in Comet Wild2, and is used by living organisms to make proteins. We discuss three different reaction paths for the formation of glycine in interstellar space from some simpler molecules detected in the interstellar medium. The possibility of the formation of glycine in interstellar space is considered by radicalradical and radical-molecule interaction schemes using quantum chemical calculations with density functional theory at the B3LYP/6-31G （d,p） level. In the chemical pathways we discuss, a few reactions are found to be totally exothermic and barrierless while others are endothermic with a very small reaction barrier, thus giving rise to a high probability of forming glycine in interstellar space.

关键词： astrobiology - astrochemistry - ISM: abundances - ISM: molecules

Formation of cyanoallene(buta-2, 3-dienenitrile) in the interstellar medium: a quantum chemical and spectroscopic study

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Research in Astronomy and Astrophysics 2014年第3期14卷 275-284页

作者： Amresh Singh Shivani Alka Misra Poonam Tandon Department of Mathematics & Astronomy University of Lucknow Department of Physics University of Lucknow

The interstellar medium, filling the vast space between stars, is a rich reser-voir of molecular material ranging from simple diatomic molecules to more com-plex, astrobiologically important molecules such as vinylcyanide, methylcyanodiac-cetylene, cyanoaUene, etc. Interstellar molecular cyanoallene is one of the most stableisomers of methylcynoacetylene. An attempt has been made to explore the possibilityof forming cyanoallene in interstellar space by radical-radical and radical-moleculeinteraction schemes in the gaseous phase. The formation of cyanoallene starting fromsome simple, neutral interstellar molecules and radicals has been studied using densityfunctional theory. The reaction energies and structures of the reactants and productsshow that the formation of cyanoallene is possible in the gaseous phase. Both of theconsidered reaction paths are totally exothermic and barrierless, thus giving rise to ahigh probability of occurrence. Rate constants for each step in the formation processof cyanoallene in both the reaction paths are estimated. A full vibrational analysishas been attempted for cyanoallene in the harmonic and anharmonic *** spectroscopic parameters such as rotational constants, rotation-vibrationcoupling constants and centrifugal distortion constants have been calculated.

关键词： astrochemistry techniques: spectroscopic ISM: abundances ISM: molecules

Clinical outcomes of triceps reflecting anconeus pedicle and olecranon osteotomy approach for distal humerus intercondylar fractures

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World Journal of Orthopedics 2024年第6期15卷 570-577页

作者： Rohit Ailani Sanjeev Kumar Bhuyan Brejesh Kumar Prasad Amit Kumar Namrata Dawani Department of Orthopaedics Lovee Shubh HospitalLucknowUttar Pradesh 226002India Department of Orthopaedics Gauhati Medical CollegeGuahati 781032India Department of Orthopaedics ESIC Medical College and HospitalFaridabadHaryana 121001India Department of Orthopaedics All India Institute of Medical SciencesKalyaniWest Bengal 741245India Department of Obstetric and Gynecology Kannauj Medical CollegeKannaujUttar Pradesh 209732India

BACKGROUND The preferred treatment for distal humeral intercondylar fractures is open reduction and internal *** there is consensus about the posterior approach,several posterior approaches have been *** is debatable as to which approach is *** To compare triceps reflecting anconeus pedicle(TRAP)and olecranon osteotomy approaches for internal fixation of distal humeral intercondylar *** In total,40 cases of Arbeitsgemeinschaft für Osteosynthesefragen/Association of the Study of Internal Fixation type C,closed,and Gustilo type I intercondylar humeral fractures were *** ranged in age from 18 years to 70 *** patients were randomized into two groups:TRAP group and olecranon osteotomy group,with 20 cases in *** were followed up at 6 wk,3 months,6 months,and 12 *** outcomes were measured in terms of flexion-extension arc,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance *** The mean age was 43.2 years in the TRAP group and 37.5 years in the olecranon osteotomy *** mean operative time and mean duration of hospital stay in the TRAP group were significantly higher than in the olecranon osteotomy group(119.5 vs 111.5 min and 9.85 vs 5.45 d,respectively).The mean arc of flexion-extension,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance Score were comparable without any significant difference in the groups at the 12-month follow-up(107.0 vs 106.2,18.3 vs 15.7,and 84.2 vs 86.2,respectively).Ulnar paresthesia and superficial infections were comparable in both groups(2 cases vs 3 cases and 3 cases vs 2 cases,respectively).Hardware prominence was significantly higher in the olecranon osteotomy group,mostly due to tension band *** Both approaches were equivalent,but there is a need for further study including higher numbers of subjects and longer study duration to prove the benefits of one approach over the other.

关键词： Elbow joint Humeral fracture Osteotomy Internal Fracture fixation

Effect of photoperiod on slow and fast developing individuals in aphidophagous ladybirds, Menochilus sexmaculatus and Propylea dissecta （Coleoptera： Coccinellidae）

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Insect Science 2016年第1期23卷 117-133页

作者： Neha Singh Geetanjali Mishra Omkar Ladybird Research Laboratory Department of Zoology University of Lucknow Lucknow 226007 India

The effects of environmental parameters on insect development have been studied extensively. But the reasons for 2 differential developmental rates within same cohort under varying environmental factors have not been explored. For the purpose, in this study the existence and stability of slow and fast development under 5 photoperiods （i.e., 8L： 16D, 10L ： 14D, 12L ： 12D, 14L ： 10D and 16L ： 8D; light and dark hours per day） and its effect on body mass and reproductive attributes in 2 aphidophagous ladybirds, Menochilus sexmaculatus （Fabricius） and Propylea dissecta （Mulsant） was examined on Aphis craccivora Koch at 27 4- 1 ~C temperature. A clear bimodal （2 peaks, where the first peak represented the fast developing and the 2nd peak slow developing individuals） pattern of distribution at each photoperiod was found. The proportion of slow and fast developing individuals in a cohort differed with photoperiods. The slow developing individuals were more in numbers at 8L ： 16D, in equal numbers at 14L ： 10D and in less numbers at 16L： 8D, indicating that the variation in emergence was owing to exogenous cues influenced differential rates of mortality. Slow developing individuals had female biased sex ratio, higher longevity and lower body mass than fast developing individuals. Fast developing females laid higher numbers of eggs with higher egg viability than slow developing females. Study of such variations in development at different photoperiods is helpful to understand its role in the development of insects particularly ladybirds and permits the selection of fast developing bioagents for their use in biocontrol of pest species.

关键词： Coccinellidae developmental duration Menochilus sexmaculatus photoperiod Propylea dissecta slow : fast emergence

Evaluation of Darwin＇s fecundity advantage hypothesis in Parthenium beetle, Zygogramma bicolorata

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Insect Science 2013年第4期20卷 531-540页

作者： Omkar and Uzma Afaq Ladybird Research Laboratory Department of Zoology University of Lucknow Lucknow 226007 India

In the Parthenium beetle, Zygogramma bicolorata Pallister （Coleoptera： Chrysomelidae）, variation in body size exists between and within the sexes. The females are larger than the males. Darwin （1874） proposed the fecundity advantage hypothesis, that is, large-sized females produce more progeny, with subsequent studies supporting, as well as, refuting the hypothesis. Thus, in order to evaluate whether this hypothesis stands in Z. bicolorata we performed experiments to investigate the role of body size in influencing：（i） assortative mating; （ii） reproductive attributes; and （iii） growth, development and survival of offspring. It is the first attempt in this beetle. We found that size influenced assortative mating, reproductive output and offspring fitness. Larger males and females were preferred as mates over smaller ones. The pairs, having larger adults as mates, had higher fecundity, while the egg viability was influenced by the male size only. The offspring of larger parents had fast development and higher survival, indicating thereby possible better nutrient allotment by the female and supply of accessory gland proteins by the male in addition to better quality of genes.

关键词： body size development fecundity offspring fitness reproductive success

Antitumorigenic Potential of Diallyl Sulfide in Ehrlich Ascites Tumor Bearing Mice

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Biomedical and Environmental Sciences 2002年第1期15卷 41-47页

作者： ShukY ArorA EnvironmentalCarcinogenesisDivision IndustrialToxicologyResearchCentreM.G.MargP.O.Box80Lucknow－226001India EnvironmentalCarcinogenesisDivision IndustrialToxicologyResearchCentreM.G.MargP.O.Box80

Objective To study the effects of diallyl sulfide (DAS), an organosulfur compoundpresent in garlic (Allium sativum), on the life span of ehrlich ascites (EA) tumor bearingSwiss albino mice, cytotoxicity and angiogenesis. Methods EA tumor cells weremaintained by serial transplantation in peritoneal cavity of male Swiss albino mice. EAtumor cells were inoculated at concentrations of 1× 106 EA cells, 2.5× 106 EA cells and5× 106 EA cells. DAS was given in 0.2 ml normal saline i. p., daily for seven days followedone hour later by inoculation with EA cells in respective groups. Results The resultsrevealed that administration of DAS increased the life span of EA tumor bearing animals bymore than 25 percent. A significant dose dependant cytotoxic response of DAS was alsoobserved on EA tumor cells. DAS was also found to inhibit the angiogenesis in EA tumorbearing mice in a dose dependent manner. Conclusion It is suggested that DAS may exertits anticarcinogenic effects by more than one mechanism and is a useful chemopreventiveand chemotherapeutic agent.

关键词： Garlic Life span Ehrlich ascites EA tumor cells Cytotoxicity Angiogenesis

Modulatory effects of diallyl sulfide against testosteroneinduced oxidative stress in Swiss albino mice

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Asian Journal of Andrology 2006年第6期8卷 719-723页

作者： Sahdeo Prasad Neetu Kalra Yogeshwer Shukla Environmental Carcinogenesis Division Industrial Toxicology Research CentreLucknow 226001India

Aim： To investigate the protective effect of diallyl sulfide （DAS）, a constituent of garlic, against testosterone-induced oxidative stress in male Swiss albino mice. Methods： The animals were given low （250 mg/animal） and high dose （500 mg/animal） of DAS in corn oil for 7 days along with testosterone （5 mg/kg body weight, i.p.）. At the end of the study period, the prostate and the liver were dissected to determine various antioxidant enzyme levels （catalase, superoxide dismutase, glutathione reductase, glutathione-s-transferase） and lipid peroxidation. Results： In testosterone treated mice, depleted antioxidant enzyme level was accompanied with enhancement in lipid peroxidation in prostate and liver. DAS significantly restored the testosterone-induced antioxidant enzymes and lipid peroxidation in the both organs. These changes appear to be mediated by the antioxidant-enhancing effects of DAS. Conclusion： The results of the present study suggest that DAS is effective in exerting antioxidant effects by inhibiting testosterone-induced oxidative stress and might be helpful in preventing prostate cancer.

关键词： oxidative stress antioxidants lipid peroxidation diallyl sulfide testosterone

Engineering microalgae as the next-generation food

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Systems Microbiology and Biomanufacturing 2023年第1期3卷 166-178页

作者： Anshu Baldia Deepanshi Rajput Akshay Kumar Ashok Pandey Kashyap Kumar Dubey Bioprocess Engineering Laboratory School of BiotechnologyJawaharlal Nehru UniversityNew Delhi‑110067India Centre for Innovation and Translational Research CSIR-Indian Institute of Toxicology ResearchLucknow 226001India

Globally,microalgae are gaining attention due to their high nutritional value and broad application in the pharmaceutical,nutraceutical,food,cosmetics,bio-fertilizer,and biofuel ***-based foods have been shown a positive impact on human health by acting as antioxidants,antimicrobials,anti-inflammatory agents,and antiviral ***-up,production cost,and safety issues are the significant challenges in microalgae product ***,various techniques have been developed to overcome these challenges and to produce microalgae bio-products in a high amount and make them safe for human and animals ***,multiple techniques such as metabolic and genetic engineering have emerged to overcome these *** present review focused on the application of these engineering tools to improve biomass yield and nutrient quality in ***,these tools are proved to be very effective in enhancing the nutrients in *** success has been achieved to improve the quality at the industrial level.

关键词： Microalgae engineering Food industry Human health Sustainability

Additions to the lichen flora of Assam with special reference to Astrothelium alboverrucoides,a new record to India

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Studies in Fungi 2021年第1期6卷 342-351页

作者： Daimari R Islary P Brahma S Basumatary S Goswami JP Nayaka S Joseph S Department of Botany Bodoland UniversityKokrajharAssam-783370India Lichenology Laboratory CSIR-National Botanical Research InstituteLucknow-226001India

The present study enumerates the diversity of corticolous lichens from Kokrajhar district of Assam *** study records 54 species of lichens belonging to 21 genera and 14 *** of the species are crustose(44 species)and 10 are *** of the species,Astrothelium alboverrucoides is a new record to India while five species viz.,Graphis sayeri,Hemithecium croceum,Malmidea piperis,Ocellularia allosporoides and Porina belanospora are new additions to the lichen biota of *** the species,nine are endemic to *** is the dominant family and Dirinaria consimilis is frequently found in all the study *** indicates its scope for future applications in other studies related to lichens in the region.

关键词： Corticolous Enumeration Ultapani Forest range University campus