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Asian Pacific Journal of Tropical Biomedicine 2024年第1期14卷 40-46页

作者： Jyotsana Bakshi Somnath Singh KP Mishra DRDO Defence Institute of Physiology and allied sciences DelhiIndia

Objective:To investigate the underlying mechanism of anti-inflammatory action of coumarin and eugenol in lipopolysaccharide(LPS)-stimulated RAW 264.7 cells.Methods:RAW 264.7 cells were treated with 2.5μg/mL of LPS,50μM of coumarin,and 50μM eugenol for 24 h.The viability of the cells was assessed using MTT assay.The production of nitric oxide was determined using Griess reagent and DCFH-DA was used to measure the production of reactive oxygen species.The protein expression of NLRP3,IL-1β,NF-κB,and cyclooxygenase 2 was assessed using Western blot analysis.Results:Coumarin and eugenol showed anti-inflammatory effects against LPS-induced inflammatory response by ameliorating the expression of NLRP3 inflammasome and NF-κB,which further led to a subsequent reduction in IL-1β,nitric oxide,and reactive oxygen species.Conclusions:Coumarin and eugenol exert their anti-inflammatory activities by modulating the NLRP3 inflammasome pathway and NF-κB.These compounds may have promising therapeutic applications for the treatment of various inflammatory diseases.

关键词： Inflammation Cytokines Coumarin Eugenol NLRP3 LPS

Lead Induced Oxidative Stress: Beneficial Effects of Kombucha Tea

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Biomedical and Environmental sciences 2003年第3期16卷 276-282页

作者： P.DIPTI B.YOGESH A.K.KAIN T.PAULINE B.ANJU M.SAIRAM B.SINGH S.S.MONGIA G.ILAVAZHAGAN DEVENDRA KUMAR W.SELVAMURTHY Defence Institute of Physiology and allied sciences Lucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.IndiaDefence Institute of Physiology and Allied SciencesLucknow RoadTimarpurDelhi-110054.India

Objective To evaluate the effect of oral administration of Kombucha tea (K-tea) on lead induced oxidative stress. Methods Sprague Dawley rats were administered 1 mL of 3.8% lead acetate solution daily alone or in combination with K-tea orally for 45 d, and the antioxidant status and lipid peroxidation were evaluated. Results Oral administration of lead acetate to rats enhanced lipid peroxidation and release of creatine phosphokinase and decreased levels of reduced glutathione (GSH) and antioxidant enzymes (superoxide dismutase, SOD and glutathione peroxidase, GPx). Lead treatment did not alter humoral immunity, but inhibited DTH response when compared to the control. Lead administration also increased DNA fragmentation in liver. Oral administration of Kombucha tea to rats exposed to lead decreased lipid peroxidation and DNA damage with a concomitant increase in the reduced glutathione level and GPx activity. Kombucha tea supplementation relieved the lead induced immunosuppression to appreciable levels. Conclusion The results suggest that K-tea has potent antioxidant and immunomodulating properties.

关键词： Lead Oxidative stress Kombucha tea Antioxidant activity

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Genes linked to obesity-related infertility: bridging the knowledge gap

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生殖与发育医学(英文) 2024年第2期8卷 121-129页

作者： Sekar Praveen Kumar Chandra Veerabathiran Ramakrishnan Human Cytogenetics and Genomics Laboratory Faculty of Allied Health Sciences Chettinad Academy of Research and Education Kelambakkam Tamil Nadu India

Genetic factors play a pivotal role in the complex relationship between obesity and infertility. This article delves into the genetics of obesity-related infertility, focusing on the essential genes and mechanisms in both sexes. We explored infertility factors in obese females, focusing on polycystic ovary syndrome (PCOS) and the influence of genes like insulin receptor (INSR), androgen receptor (AR), and follicle-stimulating hormone receptor (FSHR). Epigenetic changes are believed to contribute to PCOS-related infertility. The impact of adipokines and inflammation on obesity-related infertility has been discussed, with genes such as fat mass and obesity (FTO) and melanocortin-4-receptor (MC4R) playing significant roles. Genetic factors affecting sperm quality and function, including nuclear receptor subfamily 3 group C member 1 (NR3C1) and methylenetetrahydrofolate reductase (MTHFR), have been investigated in obesity-related infertility in males. Hormonal dysregulation influenced by genetic markers, such as leptin receptor (LEPR), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6), was also examined. Genetic factors play a vital role in obesity-related infertility in both sexes. Genes involved in metabolism, hormonal regulation, and inflammation contribute to the complex association between obesity and infertility. Epigenetic changes further complicate the relationship. Understanding these genetic mechanisms is essential to address obesity-related infertility and develop personalized interventions.

关键词： Obesity Infertility PCOS DNA methylation Epigenetics

Acute Toxicity and Cardio-Respiratory Effects of 2-Deoxy-D-Glucose: A Promising Radio Sensitiser

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Biomedical and Environmental sciences 2006年第2期19卷 96-103页

作者： R.VIJAYARAGHAVAN DEO KUMAR SN DUBE R.SINGH KS.PANDEY BC.BAG MP.KAUSHIK K.SEKHAR BS.DWARAKANATH T.RAVINDRANATH Defence Research and Development Establishment Gwalior-474002 Institute of Nuclear Medicine and allied sciences Delhi-110054 India

Objective To evaluate the acute toxicity of 2-deoxy-D-glucose （2DG） by oral （p.o.） and intravenous （i.v.） routes, and also the cardio-respiratory effects following high doses of 2DG in animal models. Methods The LD50 of 2DG （in water） was determined in rats and mice by p.o. route and in mice by i.v. route. The effect of 2-DG （250 mg/kg, 500 mg/kg, and 1000 mg/kg, i.v.） was studied on various cardio-respiratory parameters viz., mean arterial blood pressure, heart rate and respiratory rate in anaesthetised rats. The effect of 2DG （500 mg/kg, 1000 mg/kg, and 2000 mg/kg, p.o.） was also studied on various respiratory parameters viz., respiratory rate and tidal volume in conscious rats and mice using a computer program. Results The p.o. LD50 of 2DG was found to be 〉8000 mg/kg in mice and rats, and at this dose no death was observed. The LD50 in mice by i.v. route was found to be 8000 mg/kg. At this dose 2 out of 4 mice died and the death occurred within 6 h. A significant increase in the body weight was observed after p.o. administration of 2DG in rats at 500 mg/kg, 1000 mg/kg, and 2000 mg/kg doses. There was no significant change in the body weight at 4000 mg/kg and 8000 mg/kg by the p.o. route in rats and up to 8000 mg/kg by p.o. as well as i.v. routes in mice. Intravenous administration of 2DG （250 mg/kg, 500 mg/kg, and 1000 mg/kg） in anaesthetised rats showed a time-dependent decrease in the mean arterial blood pressure. There was no change in the heart rate in any of the treatment groups. The tidal volume was not changed significantly by p.o administration in conscious rats, but a significant decrease in the respiratory frequency at 500 mg/kg and 1000 mg/kg doses was observed. In the mice also there was no change in the tidal volume after p.o, administration, but the respiratory frequency decreased significantly at 2000 mg/kg dose. Conclusion 2DG is a safe compound but can cause a fall in the blood pressure and a decrease in respiratory frequency at high doses.

关键词： 2-deoxy-D-glucose Glucose analogue Radio sensitizer Acute toxicity Blood pressure Heart rate Respiration

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Combinational therapy with Myc decoy oligodeoxynucleotides encapsulated in nanocarrier and X-irradiation on breast cancer cells

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Oncology Research 2024年第2期32卷 309-323页

作者： BEHROOZ JOHARI MILAD PARVINZAD LEILAN MAHMOUD GHARBAVI YOUSEF MORTAZAVI ALI SHARAFI HAMED REZAEEJAM Department of Medical Biotechnology School of MedicineZanjan University of Medical SciencesZanjanIran Zanjan Pharmaceutical Biotechnology Research Center Zanjan University of Medical SciencesZanjanIran Nanotechnology Research Center Ahvaz Jundishapur University of Medical SciencesAhvazIran Department of Radiology Technology School of Allied Medical SciencesZanjan University of Medical SciencesZanjanIran

The Myc gene is the essential oncogene in triple-negative breast cancer(TNBC).This study investigates the synergistic effects of combining Myc decoy oligodeoxynucleotides-encapsulated niosomes-selenium hybrid nanocarriers with X-irradiation exposure on the MDA-MB-468 cell line.Decoy and scramble ODNs for Myc transcription factor were designed and synthesized based on promoter sequences of the Bcl2 gene.The nanocarriers were synthesized by loading Myc ODNs and selenium into chitosan(Chi-Se-DEC),which was then encapsulated in niosome-nanocarriers(NISM@Chi-Se-DEC).FT-IR,DLS,FESEM,and hemolysis tests were applied to confirm its characterization and physicochemical properties.Moreover,cellular uptake,cellular toxicity,apoptosis,cell cycle,and scratch repair assays were performed to evaluate its anticancer effects on cancer cells.All anticancer assessments were repeated under X-ray irradiation conditions(fractionated 2Gy).Physicochemical characteristics of niosomes containing SeNPs and ODNs showed that it is synthesized appropriately.It revealed that the anticancer effect of NISM@Chi-Se-DEC can be significantly improved in combination with X-ray irradiation treatment.It can be concluded that NISM@Chi-Se-DEC nanocarriers have the potential as a therapeutic agent for cancer treatment,particularly in combination with radiation therapy and in-vivo experiments are necessary to confirm the efficacy of this nano-drug.

关键词： Combinational therapy Antisense therapy Myc signaling pathway Niosomes Radiation therapy SeNPs

Fish Meal Lecithin as Alternative Precursor of Docosahexaenoate and Choline

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Biomedical and Environmental sciences 1996年第2期9卷 263-268页

作者： WINAI DAHLAN SOPANA CHATNILBANDHU BYAPORN NA-NAGARA AND YVON A. CARPENTIER(Fats and Oils Research Center, Department of Transfusion Medicine,Faculty of allied Health sciences, Chulalongkorn University,Bangkok 10330, Thailand Universite Libre de Bruxelle Department of Transfusion Medicine Faculty of Allied Health Sciences Chulalongkorn University Bangkok Thailand.

Choline and docosahexaenoate (DHA) are essential nutrients for maintaining normal brain function. However, their existence in fish lecithin is ignored and excluded during the degumming step of conventional fish oil manufacturing process. The study aims to introduce fish lecithin as alternative precursor of choline and omega-3 fatty acids especially DHA for nutritional supplements. Four grades of Thai fish meals with protein contents ranging from 60-70% were used. Their lipid characteristics were examined. Fish meal's fats and lecithln were 9-15 and 2-3 g/100 g, respectively. Total fatty acids constitute 23-27% monoenes without erucic acid and 24-28% polyenes including 15-19% DHA. Lecithin with 50% purity was prepared from grade-1 fish meal by means of consecutive methanol/nhexane/acetone extraction. The obtained lecithin contains choline upto 66-70 mole% with DHA reaches to 20-23%. Its peroxide value of 57 and acid value of 9 are accepted for food grade leclthin preparation, however, the further refinery process is still suggested. Since the world consumption of nutritional supplement foods is increasing steadily, the results of our study implies that fish lecithin is probably a promising source of choline and omega-3 fatty acids especially DHA for such an objective

关键词： acid Fish Meal Lecithin as Alternative Precursor of Docosahexaenoate and Choline USA

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Accuracy and precision of dried urine spot method for the detection of Schistosoma mansoni circulating cathodic antigens in resource-limited settings

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Infectious Diseases of Poverty 2024年第1期13卷 103-104页

作者： Abdallah Zacharia Clemence Kinabo Twilumba Makene Huda Omary George Ogweno Faraja Lyamuya Billy Ngasala Muhimbili University of Health and allied sciences Dar es Salaam Tanzania National Institute for Medical Research Mwanza Tanzania Neglected Tropical Diseases Control Program Ministry of Health Dodoma Tanzania

Background The World Health Organization recommends the use of Schisto point-of-care circulating cathodic anti-gens(Schisto POC-CCA)for screening of Schistosoma mansoni as it offers better sensitivity than microscopy.However,there are limitation facing the use of this method including timely availability of the test cassettes.The aim of this study was to determine the reliability of dried urine spot(DUS)method for collection of urine and detection of S.mansoni using Schisto POC-CCA cassettes in a resource-limited settings.Methods A cross-sectional study was conducted between October and November 2022 among 250 primary school children in Sengerema District,northwestern Tanzania.S.mansoni CCA was detected in filter paper-based DUSs,liquid urine using DUS Schisto POC-CCA(index),and direct urine Schisto POC-CCA(comparator)methods respectively.S.mansoni eggs in stool were detected using duplicate Kato-Katz(KK)method.The measures of accuracy were com-puted and compared between the index and comparator methods.The strength of agreement between inter-raters precisions was tested using Cohen's kappa(k).Results This study revealed S.mansoni prevalence rates of 28.8%,54.0%and 50.8%by duplicate KK,direct urine Schisto POC-CCA and DUS Schisto POC-CCA methods respectively.The mean intensity of infection among infected participants Was 86.3 eggs per gram of stool(EPG)ranging from 12.0 EPG to 824.0 EPG.The sensitivity of DUS Schisto POC-CCA and direct urine Schisto POC-CCA Was 94.44%(95%CI:89.15-99.74%)and 97.22%(95%CI:93.43-100.00%)respectively.The DUS Schisto POC-CCA method had slightly higher specificity(66.85%)than direct urine Schisto POC-CCA method(63.48%).The accuracy of the DUS Schisto POC-CCA Was found to be slightly high(74.80%,95%CI:68.94-79.06%)compared to that of direct urine Schisto POC-CCA(73.20%,95%CI:67.25-78.59%).There was good agreement between two laboratory technologists who performed the DUS Schisto POC-CCA method on similar samples(k=0.80,95%CI:0.59-0.95).Conclusions The DUS Schisto POC-CCA method had comp

关键词： Accuracy Point-of-care circulating cathodic antigen Dried urine spot Schistosoma mansoni Sensiti Specificity

Liposomal dual delivery systems in visceral leishmaniasis enhance the synergistic effects of combination therapy:A promise for the future

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Asian Pacific Journal of Tropical Medicine 2024年第2期17卷 47-60页

作者： Raghunath Hazra Amrita Kar Santanu Kar Mahapatra Department of Paramedical and allied Health sciences Biodiversity and Environmental Studies Research CentreMidnapore City CollegeKuturiyaBhadutalaPaschim Medinipur-721129West BengalIndia

Visceral leishmaniasis(VL)is a neglected tropical disease,and this review has summarized the current treatment scenario and its prospects.It also highlights alternative approaches used by research groups in India and around the world to develop cutting-edge and potent anti-leishmanial treatments.Even though numerous medications could be utilized to treat VL,the limitations of current treatments including their toxicity,cost,route of administration,and duration of doses,have contributed to the emergence of resistance.Combination therapy might be a better option due to its shorter duration,easier route of administration,and ability to extend the lifespan of individual drugs.However,there is a risk of not delivering both the drugs to the target site together,which can be overcome by the liposomal entrapment of those drugs and at a time knock an opportunity to reduce the dosage of amphotericin B if the combination drug provides a synergistic effect with it.Therefore,this review presents a novel strategy to fight against VL by introducing dual drug-loaded liposomes.

关键词： Visceral leishmaniasis Liposomal anti-leishmanial drug Dual drug liposome

Molecular characterization of an outbreak-involved Bacillus anthracis strain confirms the spillover of anthrax from West Africa

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Infectious Diseases of Poverty 2024年第1期13卷 93-94页

作者： Shuchao Wang Roland Suluku Mohamed B.Jalloh Ahmed F.Samba Baogui Jiang Yubiao Xie Doris Harding Mengyao Zhang Foday Sahr Mahmud E.Sesay James S.Squire Mohamed A.Vandi Moinina N.Kallon Shoufeng Zhang Rongliang Hu Yuee Zhao Zhiqiang Mi Changchun Veterinary Research Institute Chinese Academy of Agricultural Sciences Changchun China Department of Animal sciences School of Agriculture and Food Sciences Njala University Njala Sierra Leone Department of Microbiology College of Medicine and Allied Health Sciences University of Sierra Leone Freetown Sierra Leone Ministry of Agriculture and Food sciences Freetown Sierra Leone Beijing Institute of Microbiology and Epidemiology Beijing China Ministry of Health and Sanitation Freetown Sierra Leone Beijing Institute of Biotechnology Beijing China

Background Anthrax,a zoonotic disease caused by the spore-forming bacterium Bacillus anthracis,remains a major global public health concern,especially in countries with limited resources.Sierra Leone,a West African country historically plagued by anthrax,has almost been out of report on this disease in recent decades.In this study,we described a large-scale anthrax outbreak affecting both animals and humans and attempted to characterize the path-ogenusingmoleculartechniques.Methods The causative agent of the animal outbreak in Port Loko District,Sierra Leone,between March and May 2022 was identified using the nanopore sequencing technique.A nationwide active surveillance was implemented from May 2022 to June 2023 to monitor the occurrence of anthrax-specific symptoms in humans.Suspected cases were subsequently verified using quantitative polymerase chain reaction.Full-genome sequencing was accomplished by combining long-read and short-read sequencing methods.Subsequent phylogenetic analysis was performed based on the full-chromosome single nucleotide polymorphisms.Results The outbreak in Port Loko District,Sierra Leone,led to the death of 233 animals between March 26th and May 16th,2022.We ruled out the initial suspicion of Anaplasma species and successfully identified B.anthracis as the causative agent of the outbreak.As a result of the government's prompt response,out of the 49 suspected human cases identifed during the one-year active surveillance,only 6 human cases tested positive,all within the frst month after the official declaration of the outbreak.The phylogenetic analysis indicated that the BaSL2022 isolate responsible for the outbreak was positioned in the A.Br.153 clade within the TransEuroAsian group of B.anthracis.Conclusions We successfully identifed a large-scale anthrax outbreak in Sierra Leone.The causative isolate of B.anthracis,BaSL2022,phylogenetically bridged other lineages in A.Br.153 clade and neighboring genetic groups,A.Br.144 and A.Br.148,eventually confirming the spillover of anthrax f

关键词： Molecular identification Anthrax Bacillus anthracis Sierra Leone Phylogeny Single nucleotide polymorphism

An Extensive Review of Vitiligo-Associated Conditions

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International Journal of Dermatology And Venereology 2024年第1期07卷 44-51页

作者： Premkumar Madhavi Kalarani Iyshwarya Bhaskar Mohammed Vajagathali Veerabathiran Ramakrishnan Human Cytogenetics and Genomics Laboratory Faculty of allied Health sciences Chettinad Hospital and Research Institute Chettinad Academy of Research and Education Kelambakkam Tamil Nadu 603103 India

Vitiligo is an autoimmune disorder caused by the destruction of melanocytes in various body regions. Numerous diseases may accompany vitiligo. The prevalence of vitiligo varies among geographical regions and shows no relation to sex or age. However, vitiligo most commonly affects people aged 10 to 30 years. The clinical symptoms of vitiligo include irregular patches on the skin and various diseases associated with this disorder. The present review focuses on the clinical effects and risk factors of vitiligo-associated conditions and the current therapeutics for treating vitiligo. This systematic review was performed based on the PRISMA guidelines and articles published from 2000 to 2023 in Web of Science, PubMed, PsycINFO, and Embase. The most clinically significant diseases associated with vitiligo are alopecia areata, autoimmune thyroid disease, Addison disease, and type 1 diabetes mellitus. No targeted population is specifically prone to vitiligo; it does not affect any particular race or sex. Hence, awareness of the diseases associated with vitiligo is necessary to control them through various medical and surgical treatments with the proper facilities.

关键词： vitiligo autoimmune disorder melanocyte Addison disease atopic dermatitis