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| Issue Date | Title | Author(s) |
| 1992 | The activity of certain enzymes in the tick, Argas (Argas) hermanni during embryogenesis | Helmy, Nadia ; A.I. Gadallah |
| 2010 | Biochemical effects of some agricultural waste extracts against Culex pipiens (Diptera: Culicidae) | Helmy, Nadia ; Bakr,R.F.A ; Nawwar,G.A ; Ibrahim,S.El ; Helmy,O.M |
| 2007 | The biological effects of the Jh-analogue, pyriproxyfen on the house-dust mites: Dermatophagoides pteronyssinus and D.Farinae (Acari :Pyroglyphidae). | Awad.A.A. ; M.A.Kenawy ; A.M.El-Shafei ; Helmy, Nadia ; Y.Z.A.El-Zohery ; Y.M. Abdel-hamid |
| 1990 | Changes in neurosecretory cell activity in female Argas (Aragas) hermonni Audouin (Acari: Argasidae). | Shanbaky, N.M. ; A. El Said ; Helmy, Nadia |
| 2010 | Changes in protein content of Culex pipiens mosquito treated with two agriculture waste ex/tracts | Bakr,R.F.A ; Helmy, Nadia ; Nawwar,G.A ; Ibrahim,S.El ; Helmy,O.M |
| 1999 | Changes in the total protein in the gut and ovaries of Cimex lectularius (L.) sterilized by gamma radiation. | Helmy, Nadia ; N.M. Shanbaky ; H.M. Roushdy ; Y.S. Zaghloul |
| 1990 | Changes in total hemolymph and ovary proteins during oogenesis in Argas (Argas) hermonni (Acari: Argasidae). | Shanbaky, N.M. ; Mansour, M.M. ; Helmy, Nadia |
| 2018 | Changes in Vitellogenic Proteins During The Reproductive Cycle of The Female Tick, Argas persicus. | Nadia Helmy Ahmed ; Nawal M. Shanbaky ; Radwan, Wafaa ; Reda F. A. Bakr ; Dalia A.M. Salem ; Amira E. Abd El Hamid |
| 1-Nov-2013 | Correlation between Hepatitis B surface antigen titers and HBV DNA levels | Alghamdi, Amal; Aref, Nagwa ; El-Hazmi, Malak; Al-Hamoudi, Waleed; Alswat, Khalid; Helmy, Nadia ; Sanai, Faisal; Abdo, Ayman |
| 1-Nov-2013 | Correlation between Hepatitis B surface antigen titers and HBV DNA levels | Alghamdi, Amal; Nagwa Mohamed Amin Aref ; El-Hazmi, Malak; Al-Hamoudi, Waleed; Alswat, Khalid; Helmy, Nadia ; Sanai, Faisal; Abdo, Ayman |
| 1996 | Dynamics of Borrelia crocidurae infection in the mid gut and hemolymph of Ornithodoros (Pavlovskyella) erraticus and localization of the spirochete in the mid gut wall | Helmy, Nadia ; N. Lotfy ; A. Abd-ElMohsen |
| 1992 | Effect of 20-hydroxy ecdysone on haemolymph isozyme patterns of the female camel tick, Hyalomma dromedarii koch (Acari: Ixodidae) during vitellogenesis. | Helmy, Nadia |
| 1992 | Effect of 20-hydroxy ecdysone on Haemolymph proteins of the female tick, Hyalomma dromedarii koch (Acari: Ixodidae) during oogenesis | Gadallah, A.I. ; Helmy, Nadia |
| 1991 | Effect of different nutritive media on the toxicity of Bacillus sphaericus 1593-4 as mosquito larvicide. | Lotfy, N.M. ; Helmy, Nadia |
| 2009 | Effect of extrinsic incubation temperature on borrelial infection in various organs of Ornithodoros (O.) savignyi | Helmy, Nadia ; Shanbaky, N.M. ; Abdel Mohsen, A. ; Abdelhamid, Amira |
| 2009 | Effect of extrinsic incubation temperature on transstadial and transovarial transmission of Borrelia sp. in Ornithodoros (O.) savignyi and infectivity to vertebrate host. | Shanbaky, N.M. ; Helmy, Nadia ; Abdel Mohsen, A. ; Abd El-hamid, A.E |
| 2009 | Effect of juvenile hormone analogue (Admiral) on embroyogenesis of the soft tick Argas persicus (oken) | Helmy, Nadia ; Radwan, W.A ; Guneidy, N.A. ; Mohammed, S.S. |
| 2009 | Effect of juvenile hormone analogue (Admiral) on viability of eggs and postembryonic developmelt of the soft tick Argas persicus (oken). Egypt. | Radwan, W.A. ; Helmy, Nadia ; Guneidy N.A. ; Mohammed, S.S |
| 2018 | Effect of the Insect Growth Regulator “ Lufox” on Some Biological Aspects of the Soft Tick Argas persicus (Oken) | Nadia Helmy Ahmed ; Reda F. A. Bakr ; Dalia A.M. Salem ; Wafaa A. Radwan ; Shanbaky, Nawal ; Amira E. Abd El Hamid |
| 1995 | Embryogenesis of Phlebotomus papatasi sand fly (Diptera: Psychodidae) Organogenesis of the nervous system, tracheal system, muscular system, the heart and gonad rudiments. | Abbassy, M.M. ; Helmy, Nadia ; M. Osman ; S.E. Cope ; S.M. Presely |
| 1995 | Embryogenesis of Phlebotomus papatasi sand fly (Diptera: Psychodidae): Cell cleavage, Blastoderm formation and gastrulation | Abbassy, M.M. ; Helmy, Nadia ; M. Osman ; S.E. Cope ; S.M. Presley |
| 1995 | Embryogenesis of Phlebotomus papatasi sand fly (Diptera: Psychodidae): Organogenesis including: Segmentation, Blastokinesis, Mouth parts and Alimentary canal. | Abbassy, M.M. ; Helmy, Nadia ; M. Osman ; S.E. Cope ; S.M. Presely |
| 1986 | Female Ornithodoros (Pavlovskyella) erraticus (Acari: Ixodoidae: Argasidae): Effect of feeding. | Khalil, G.M. ; Helmy, Nadia ; Hoogstraal, H. ; El Said, A. |
| 2000 | First record of natural infection with Borrelia in Ornithodoros (Ornithodoros) savignyi. Reservoir potential and specificity of the tick to Borrelia. | Shanbaky, N.M. ; Helmy, Nadia |
| 1990 | Hormonal control of vitellogenesis in Argas (Argas) hermanni Audouin (Acari: Argasidae). | Shanbaky, N.M. ; M.M. Mansour ; A.J. Main ; A. El Said ; Helmy, Nadia |
| 1983 | Hyperparasitism in Ornithodoros erraticus. | Helmy, Nadia ; G.M. Khalil ; H. Hoogstraal |
| 2007 | Mice responses to allergens of the two common house dust mites, Dermatophagoides pteronyssinus and Dermatophagoides farinae. | Kenawy,M.A. ; A.A.Awad ; Helmy, Nadia ; A.M.El-Shafei ; Y.Z.A.El-Zohery ; Y.M.Abdel-hamid |
| 1999 | Potency of insecticide treatments on reproduction and some physiological aspects in the house fly Musca demostica (L.) | Guneidy, N.A. ; Helmy, Nadia ; S.M. El-Bermawy ; M.S. Hamed |
| 2016 | Predatory Spiders Associated with the two spotted red spider mite , Tetranychus urticae on two field crops in Qalubyia Governorate,Egypt | Helmy, Nadia ; Mohammed H. El-Erksousy ; Amal E. Abo-zaed ; Nawal M. Shanbaky ; Manal H. Ibraheem |
| 2006 | Prevalence of borellial infections in tick vectors and vertebrate hosts in Esmaieliya governorate, Egypt | Abd El-Baky, S.M.M. ; Helmy, Nadia ; A. El Abbas ; A. Abdel Mohsen ; E.S. Awaad |
| 2000 | Prevalence of Borrelia crocidurae in Ornithodoros (Pavlovskyella) erraticus (Acari: Argasidae) and rodent hosts in Egypt. | Helmy, Nadia |
| 2006 | Prevalence of borrelial infections in tick vectors and vertebrate hosts in Giza governorate, Egypt. | Helmy, Nadia ; A. El Abbas ; S.M.M., Abd El-Baky ; A. Abdel Mohsen ; E.S. Awaad |
| 2010 | Protein pattern of Admiral treated and untreated house dust mites: Dermatophagoides pteronyssinus and Dermatophagoides farinae (Acarina: Pyroglyphidae) | Helmy, Nadia ; A.A.Awad ; Y.M.Abdel-hamid ; M.A.Kenawy ; A.M.El-Shafei ; Y.Z.A.El-Zohery |
| 2011 | Proteolytic digestion of blood meal in Ornithodoros erraticus, a vector of Borrelia crocidurae causing relapsing fever in Egypt. | Yousery, Ayat ; Nawal M. Shanbaky ; Nadia Helmy ; Hala M. Khater |
| 2000 | Seasonal abundance of Ornithodoros (O.) sovignyi and prevalence of infection with Borrelia spirocheses in Egypt. | Helmy, Nadia |
| 2006 | Seasonal abundance of hard ticks (Ixodidae) in two localities (Giza and Esmaieliya governorates) of Egypt. | El Abbas, A. ; S.M.M, Abd El-Baky ; Helmy, Nadia ; A. Abdel Mohsen ; E.S. Awaad |
| 1984 | Seasonal dynamics of Ornithodoros (Pavlovskyella) erraticus (Acari: Ixodoidae: Argasidae) and spirochete Borrelia crocidurae in Egypt | Khalil, G.M. ; Helmy, Nadia ; Hoogstraal, H. ; El Said, A. |
| 2016 | Seasonal dynamics of the two spotted red spider mite , Tetranychus urticae koch on two field crops in Qalubyia governorate,Egypt. Egypt | Helmy, Nadia ; Nawal M. Shanbaky ; Mohammed H. El-Erksousy ; Manal H. Ibraheem |
| 1999 | Studies on histopathological changes in gonads of Cimex lectularius (L.) sterilized by gamma radiation. | Helmy, Nadia ; N.M. Shanbaky ; H.M. Roushdy ; Y.S. Zaghloul |
| 2000 | Studies on the Phlebotomine sand flies (Diptera: Psychodidae) and rodents in a Cutaneous Leishmaniasis focus in Nekhel, North Sinai, Egypt | El-Hossary, S.S. ; Shehata, Magdi ; Helmy, Nadia ; R.P. Lane ; B.M. El-Sawaf |
| 2000 | Toxicological effect and ultrastructural changes in Musca demostica larvae (Diptera: Muscidae) induced by insect growth regulator (IGR); Admiral combined with new pyrethroid insecticide. | Bakr, R.F.A. ; N.A. Guneidy ; S.M. El-Bernawy ; Helmy, Nadia ; I. Abu-El-Yazid |
| 2008 | Ultrastructure of normal and JHA-treated eggs of the soft tick Argas persicus (oken) | Radwan, W.A. ; Helmy, Nadia ; Guneidy N.A ; Mohammed, S.S |
| 1990 | Vitellogenic and nonvitellogenic proteins in hemolymph, ovaries and eggs of Argas (Argas) hermannni (Acari: Argasidae). | Shanbaky, N.M. ; M.M. Mansour ; A.J. Main ; Helmy, Nadia |
