nur hilwani, ibrahim siti fatimah, mokhtar mohd helmy, yahaya azyani, zulkefli aini farzana, ankasha sheril june, osman khairul.  (2023).  modulation of vulvovaginal atrophy (vva) by gelam honey in bilateral oophorectomized rats.  - frontiers in endocrinology.  1-13. 

kok-yong chin, ahmad nazrun shuid and siti fatimah ibrahim.  (2023).  editorial: nutraceuticals modulation for oxidative stress in disease and health.  - frontiers in pharmacology.  1-2. 

mohd helmy mokhtar, datu agasi mohd kamal, siti fatimah ibrahim, azizah ugusman.  (2023).  kelulut honey improves oestrus cycle, hormonal profiles, and oxidative stress markers in letrozole-induced polycystic ovary syndrome rats.  - the 10th federation of the asian and oceanian physiological societies congress 2023 (faops).  206. 

farah hanan fathihah jaffar, siti fatimah ibrahim, khairul osman, chua kien hui.  (2023).  wi-fi dan sistem pembiakan lelaki: pencegahan menggunakan sarang burung walit.  - .  167. 

mohd helmy bin mokhtar;ruszymah binti haji idrus;norhazlina binti abdul wahab;norfilza mohd mokhtar;siti fatimah binti ibrahim.  (2022).  elucidating the effects of gelam honey on morphology and ionic channels expression of reproductive organs in postmenopausal rat models.  - .  . 

ahmad rohi g, anisah n, asmah h, mahanem mn, hassan md, mohd hafiz s, john shia ks, kamisah y, khairul o, low kc, mohd hanafi ad, norazrina a, nur azlina mf, siti balkis b, siti fatimah i, tay st, vivian jg, zamirah za, chen hc.  (2022).  universiti kebangsaan malaysia ethical principles and guidelines on the use of laboratory animals.  - .  93. 

siti fatimah ibrahim.  (2022).  nerve, muscle & ans.  - .  1-45. 

siti fatimah binti ibrahim;khairul bin osman;mohd helmy bin mokhtar;farah hanan fathihah binti jaffar.  (2022).  the effect of wi-fi emitting radiofrequency radiation on the c-kit expression of adiff spermatogonia in the testes of developing spraque dawley male pups..  - .  . 

jaffar farah hanan fathihah, osman khairul, hui chua kien, zulkefli aini farzana, ibrahim siti fatimah.  (2022).  long term wi-fi exposure from pre-pubertal to adult age on the spermatogonia proliferation and protective effects of edible bird's nest supplementation.  - frontiers in physiology.  199-209. 

datu agasi mohd kamal, siti fatimah ibrahim, azizah ugusman dan mohd helmy mokhtar.  (2022).  effects of kelulut honey on oestrus cycle regulation and histomorphological changes in letrozole-induced polycystic ovary syndrome rats: a preliminary study.  - life.  1-15. 

datu agasi mohd kamal, siti fatimah ibrahim, azizah ugusman, mohd helmy mokhtar.  (2022).  kelulut honey regulates sex steroid receptors in a polycystic ovary syndrome rat model.  - international journal of molecular sciences.  1-19. 

datu agasi mohd kamal, siti fatimah ibrahim, azizah ugusman, siti sarah mohamad zaid and mohd helmy mokhtar.  (2022).  kelulut honey improves folliculogenesis, steroidogenic, and aromatase enzyme profiles and ovarian histomorphology in letrozole-induced polycystic ovary syndrome rats.  - nutrients.  1-17. 

datu agasi mohd kamal, siti fatimah ibrahim, azizah ugusman, mohd helmy mokhtar.  (2022).  kelulut honey ameliorates oestrus cycle, hormonal profiles, and oxidative stress in letrozole-induced polycystic ovary syndrome rats.  - antioxidants.  1-21. 

nurul atiqah binti azhar, farah hanan fathihah jaffar, khairul osman, mohd farisyam mat ros, aini farzana zulkefli, chua kien hui, siti fatimah ibrahim.  (2022).  protective effects of edible bird nest on p38 mapk pathway in busulfan-induced sprague dawley rats.  - 35th annual scientific meeting of the malaysian society of pharmacology and physiology (mspp 2022).  S151. 

sofwatul mokhtarah maluin, siti fatimah ibrahim, khairul osman, farah hanan fathihah jaffar.  (2022).  effect of edible bird nest supplementation on reproductive hormone in adult spermatogenesis following wi-fi exposure.  - 35th annual scientific meeting of the malaysian society of pharmacology and physiology (mspp 2022).  S144. 

datu agasi mohd kamal, siti fatimah ibrahim, haziq kamal, mohd izhar ariff mohd kashim and mohd helmy mokhtar.  (2021).  physicochemical and medicinal properties of tualang, gelam and kelulut honeys: a comprehensive review.  - nutrients.  1-31. 

nur hilwani ismail, khairul osman, aini farzana zulkefli, mohd helmy mokhtar and siti fatimah ibrahim.  (2021).  the physicochemical characteristics of gelam honey and its outcome on the female reproductive tissue of sprague-dawley rats : a preliminary study.  - molecules.  1-25. 

nur hilwani ismail, siti fatimah ibrahim, farah hanan fathihah jaffar, mohd helmy mokhtar, kok yong chin and khairul osman.  (2021).  augmentation of the female reproductive system using honey: a mini systematic review.  - molecules.  1-17. 

farah hanan fathihah jaffar, khairul osman, chua kien hui, aini farzana zulkefli and siti fatimah ibrahim.  (2021).  edible bird's nest supplementation improves male reproductive parameters of sprague dawley rats.  - frontiers in pharmacology.  21-26. 

maluin sofwatul mokhtarah, osman khairul, jaffar farah hanan fathihah, ibrahim siti fatimah.  (2021).  effect of radiation emitted by wireless devices on male reproductive hormones: a systematic review.  - frontiers in physiology.  1-8. 

nur hilwani ismail, khairul osman, aini farzana zulkefli, mohd helmy mokhtar, siti fatimah ibrahim.  (2021).  atrophic vaginitis by gelam honey in sprague dawley rats: pilot study of potential apitherapy for managing genitourinary syndrome.  - malaysian society of pharmacology and physiology 34th scientific meeting 2021.  198-199. 

datu agasi mohd kamal, siti fatimah ibrahim, mohd helmy mokhtar.  (2021).  a preliminary study of the effects of kelulut honey on ovarian histology in letrozole-induced polycystic ovary syndrome model in rats.  - malaysian society of pharmacology & physiology (mspp) - 34th scientific meeting 2021.  200. 

mohd helmy bin mokhtar;norhazlina binti abdul wahab;norfilza binti mohd mokhtar;siti fatimah binti ibrahim.  (2021).  investigating the effect of testosterone on connexins expression in early pregnant rat.  - .  . 

farah hanan fathihah jaffar, khairul osman, chua kien hui, aini farzana zulkefli and siti fatimah ibrahim.  (2021).  edible bird's nest supplementation improves male reproductive parameters of sprague dawley rat.  - frontiers in pharmacology.  1-6. 

norhazlina abdul wahab, zahreena othman, noor wahidah mohd nasri, mohd helmy mokhtar, siti fatimah ibrahim, adila a. hamid, raja affendi raja ali and norfilza mohd mokhtar.  (2020).  inhibition of mir-141 and mir-200a increase dlc-1 and zeb2 expression, enhance migration and invasion in metastatic serous ovarian cancer.  - international journal of environmental research and public health.  1-14. 

khairul bin osman, siti fatimah ibrahim, noor hashida hashim.  (2020).  quantification of fluorochrome protamination intensity in sperm dna wrapping materials towards male infertility.  - .  1-10. 

mohd helmy mokhtar, naguib salleh, norhazlina abdul wahab, norfilza mohd mokhtar, siti fatimah ibrahim.  (2020).  investigating the effect of testosterone on connexins expression in early pregnant rat.  - .  1-7. 

siti fatimah i,chua kh,mohd heikal my,mohd helmy m,norfilza mm,ruszymah bhi,azizah u,amilia a,norhazlina aw,jaya kumar m,adila ah,norizam s,zanariyah a,aini farzana z,amiza h,norliza s,nur fudhla mn,norshafila dmr,nazierah ag,kamariah o,syamsawal qz.  (2020).  physiology practical: adaptation of cardiovascular system in physioogycal conditions.  - .  1. 

ahmad rohi ghazali, anisah nordin, asmah hamid, kamisah yusof, khairul osman, low kiat cheong, mohd hanafi ahmad damanhuri, norazrina azmi, nur azlina mohd fahami, siti balkis budin, siti fatimah ibrahim, tay sun tee, zamirah zainal abidin.  (2020).  prinsip dan garis panduan etika penggunaan haiwan makmal universiti kebangsaan malaysia.  - .  94. 

datu agasi mohd kamal, siti fatimah ibrahim, mohd helmy mokhtar.  (2020).  androgen effect on connexin expression in the mammalian female reproductive system: a systematic review.  - bosnian journal of basic medical sciences.  293-302. 

adila ah,mohd heikal my,mohd helmy m,siti fatimah i,norfilza mm,ruszymah bhi,chua kh,azizah u,amilia a,norhazlina aw,jaya kumar m,norizam s,zanariyah a,aini farzana z,amiza h,norliza s,nur fudhla mn,norshafila dmr,nazierah ag,kamariah o,syamsawal qz.  (2020).  physiology practical: blood.  - .  1. 

datu agasi mohd kamal, siti fatimah ibrahim, mohd helmy mokhtar.  (2020).  effects of testosterone on the expression of connexin 26 and connexin 43 in the uterus of rats during early pregnancy.  - in vivo.  1863-1870. 

haziq kamal, geok chin tan, siti fatimah ibrahim, mohd. farooq shaikh, isa naina mohamed, rashidi m. pakri mohamed, adila a. hamid, azizah ugusman and jaya kumar.  (2020).  alcohol use disorder, neurodegeneration, alzheimer's and parkinson's disease: interplay between oxidative stress, neuroimmune response and excitotoxicity.  - frontiers in cellular neuroscience.  1-15. 

datu agasi mohd kamal, siti fatimah ibrahim, mohd helmy mokhtar.  (2020).  testosterone effects on the expression of connexin 26 and connexin 43 in the uterus of rats during early pregnancy.  - 22nd medical and health research week 2020.  108. 

amilia a,mohd heikal my,mohd helmy m,siti fatimah i,norfilza mm,ruszymah bhi,chua kh,azizah u,norhazlina aw,jaya kumar m,adila ah,norizam s,zanariyah a,aini farzana z,amiza h,norliza s,nur fudhla mn,norshafila dmr,nazierah ag,kamariah o,syamsawal qz.  (2020).  physiology practical: contraction of skeletal muscle.  - .  1. 

mohd heikal my,mohd helmy m,siti fatimah i,norfilza mm,ruszymah bhi,chua kh,azizah u,amilia a,norhazlina aw,jaya kumar m,adila ah,norizam s,zanariyah a,aini farzana z,amiza h,norliza s,nur fudhla mn,norshafila dmr,nazierah ag,kamariah o,syamsawal qz.  (2020).  respiratiry practical: 4 objectives to understand volumes and capacities.  - .  1. 

farah dayana rosli, noor hashida hashim, khairul osman, siti fatimah ibrahim, nurul kabir..  (2019).  ameliorative effects of thymoquinone on sperm parameters and testosterone level of nicotine-treated sprague dawley rats.  - brazilian archives of biology and technology.  1-11. 

farah hanan fathihah jaffar, khairul osman, nur hilwani ismail, kok-yong chin and siti fatimah ibrahim.  (2019).  adverse effects of wi-fi radiation on male reproductive system: a systematic review.  - tohoku journal of experimental medicine.  169-179. 

farah dayana rosli, noor hashida hashim, yusmin mohd yusuf, khairul osman, siti fatimah ibrahim, nurul kabir.  (2019).  thymoquinone enhances sperm dna integrity in nicotine-induced infertile male rats.  - tropical journal of pharmaceutical research.  1219-1225. 

siti fatimah ibrahim.  (2018).  standardization of oocyte quality to assess spermatozoa fertilization capability in animal model.  - 32nd scientific meeting of malaysian society of pharmacology & physiology.  . 

dr. mohd heikal mohd yunus, dr. teoh seong lin, prof madya dr isa naina mohamed, prof madya dr siti fatimah ibrahim, dr. rosnah ismail.  (2018).  deafening silence.  - .  . 

syarifah faezah syed mohamad, siti fatimah ibrahim, nur hilwan ismail, khairul osman, farah hanan fathihah jaafar, chew fang nang & farida zuraina mohd yusof.  (2018).  quantification of hsp70 gene expression and determination of capacitation status of magnetically separated cryopreserved bovine spermatozoa at different thawing temperature and time.  - sains malaysiana.  . 

farah hanan fathihah jaffar, khairul osman, siti fatimah ibrahim.  (2018).  pencirian fosfolipid & protein sperma lembu: pemisahan elektroforesis.  - .  100. 

khairul osman, rafeah pakri mohamed, mohd hashim omar, siti fatimah ibrahim, norhamizan hashim.  (2018).  effect of workstress and smoking towards sperm quality among infertile male.  - malaysian journal of public health medicine.  . 

lina s., eliza h., hashida n. h., ibrahim s. f., osman k..  (2018).  androgen receptor and ultrastructural features of nigella sativa oil and nicotine-treated male rat reproductive glands.  - sains malaysiana.  . 

khairul osman, noraina mohd bakri, farah hanan fathihah jaffar, nurul atikah osman & siti fatimah ibrahim.  (2017).  the effect of density gradient centrifugation and magnetic-activated cell sorting with the combination of both on bovine spermatozoa kinematics, viability and acrosome status.  - journal of agricultural science.  73-78. 

nur hilwani ismail, khairul osman, farida zuraina mohd yusof, syarifah faezah syed mohamad, farah hanan fathihah jaffar & siti fatimah ibrahim.  (2017).  improvement of post-thaw sperm kinematics and dna integrity of cross-bred bovine sperm by incorporating dgc as selection method prior to cryopreservation.  - journal of agricultural science.  24-31. 

zulaiha a. rahman, siti fatimah ibrahim, nurul atikah osman, farah hanan fathihah jaffar & khairul osman.  (2017).  effect of energy substrate dynamics on mitochondrial activity and oxidative stress levels of in vitro maturing bovine oocytes.  - journal of agricultural science.  14-23. 

khairul osman, siti fatimah ibrahim.  (2017).  advances in andrology assessment : from lab to iot.  - advancement in research for sustainable health.  . 

farah hanan fathihah jaffar, khairul osman, jaya kumar & siti fatimah ibrahim.  (2017).  effect of alcohol consumption on the sperm dna integrity : a systematic review.  - journal of agricultural science.  136-144. 

khairul osman, rafeah pakri mohamed, mohd hashim omar, siti fatimah ibrahim, farah hanan fathihah jaafar.  (2017).  kesan merokok terhadap integriti dalam kalangan populasi melayu.  - sari penyelidikan.  40-41. 

khairul osman, rafeah pakri mohamed, mohd hashim omar, siti fatimah ibrahim.  (2016).  smoking alters sperm chromatin intergrity and sperm count.  - 1st international research conference on engineering, science and humanities.  212-214. 

fayez a almabhouh, khairul osman, siti fatimah ibrahim, sergey gupalo, justin gnanou, effendi ibrahim, harbindar jeet singh.  (2016).  melatonin ameliorates the adverse effects of leptin on sperm.  - asian journal of andrology.  1-8. 

norhamizan hashim, khairul osman, siti fatimah ibrahim, rosliah harun & rafeah pakri mohamed.  (2016).  kesan psikostres terhadap kerosakan dna dan ketakormalan residu sitoplasma sperma manusia.  - sains malaysiana.  1931-1938. 

noraina mohd bakri, siti fatimah ibrahim, nurul atikah osman, nurhaslina hasan, farah hanan fathihah jaffar, zulaiha abdul rahman, khairul osman.  (2016).  embryo apoptosis identification: oocyte grade or cleavage stage?.  - saudi journal of biological sciences.  50-55. 

noraina mohd bakri, khairul osman, nurul atikah osman, nurhaslina hasan, farah hanan fathihah jaffar & siti fatimah ibrahim.  (2015).  pengaruh pengkelasan sel telur terhadap kematian sel telur lembu tersenyawa.  - impak.  . 

norhamizan hashim, khairul osman, siti fatimah ibrahim & rosliah harun.  (2015).  adakah stres mempengaruhi ketaknormalan sperma manusia?.  - impak.  . 

noraina mohd bakri, khairul osman, nurul atikah osman, nurhaslina hasan, farah hanan fathihah jaffar & siti fatimah ibrahim.  (2015).  the influence of the egg cell grades toward the death of cattle fertilized egg cell.  - impact.  . 

norhamizan hashim, khairul osman, siti fatimah ibrahim & rosliah harun.  (2015).  stress contribute to abnormality of the human sperm?.  - impact.  . 

azizah ugusman, noralim a. othman, zahirah n. abdul razak, melissa m. soh, puteri n.a. kamal faizul, and siti f. ibrahim.  (2015).  assessment of learning environment among the first year malaysian medical students.  - journal of taibah university medical sciences.  454-460. 

ismail m.i., osman k., ibrahim s.f., jaafar f.h.f., ghani n.a.a., zainalabidin f.a., othman a.m..  (2014).  development of single tubing-type canister for cryo-storage of bull semen and their effect on sperm motility and viability.  - brazilian archives of biology and technology.  194 - 199. 

s.s.m. faezah, f.m.y zuraina, j.h.f. farah, o.khairul, n.i. hilwani, m.i. iswadi, c.n. fang, i.zawawi, o.m. abas and s.i. fatimah.  (2014).  the effects of magnetic separation on cryopreserved bovine spermatozoa motility, viability and cryo-capacitation status.  - zygote.  22(3):378-386. 

noralim azhim o, zahirah nadiyah ar, melissa ms, nasyitah aina kf, azizah u and siti fatimah i.  (2013).  medical students` perceptions of the learning environment in universiti kebangsaan malaysia.  - 5th medical undergraduates` annual scientific research meeting.  . 

siti fatimah ibrahim, athifah ariff johor, farahwahida othman, lee pei yee, mohamad firdaus yahaya, farah hanan fatihah jaafar, noraina mohd bakri & khairul osman.  (2013).  albumin-v: role in bovine spermatozoa viability, motility and membrane elasticity.  - journal of agricultural science.  5(3):83-89. 

khairul osman, nurhaslina hassan, siti fatimah ibrahim, chew fang nang & zawawi ismail.  (2013).  viability selection of bovine oocyte using annexin-v assay.  - journal of agricultural science.  5(6):141-145. 

khairul osman , siti fatimah ibrahim , nor azlina zakaria , mohd iswadi ismail , amat aswadi abd karim and zawawi ismail.  (2012).  effects of alpha lipoic acids on cattle sperm kinetics using computer assisted semen analysis.  - research journal of biological sciences.  7(2) : 73-77. 

k osman, cf nang, sf ibrahim, sb budin, fhf jaffar, naa wahab.  (2012).  albumin improved spermatozoa quality and dna integrity for freezing-free preservation.  - international journal of biological & medical research.  3(2):1670-1679. 

c. f. nang, k. osman, s. b. budin, m. i. ismail, f. h. f. jaffar, s. f. s. mohamad & s. f. ibrahim.  (2012).  bovine serum albumin: survival and osmolarity effect in bovine spermatozoa stored above freezing point.  - andrologia.  44(S1):447-453. 

siti fatimah ibrahim, farah hanan fathihah jaffar, khairul osman, syarifah faezah syed mohamed, chew fang nang, nur hilwani ismail, and mohd iswadi ismail.  (2011).  bull spermatozoa motility : optimization of coenzyme q10 and alpha-lipoic acid concentration.  - the iioab journal.  2(5):8-13. 

prof madya dr. hamidah hassan, cik satia subramaniam, puan muliati ismail, dr. faridah hussan, dr. zakiah jubri, dr. siti fatimah ibrahim.  (2011).  central nervous system.  - .  . 

fatimah, is; iswadi, im; khairul, o; nurhazilah, m; fadzilah, ms; padzil, arm; srijit, d; mazni, oa.  (2010).  a preliminary study of reactive oxygen species activity within motile boer buck sperm using confocal laser scanning microscope (clsm).  - clinica terapeutica.  161(2):125-128. 

zahara abdul manaf, c.c lee, siti fatimah ibrahim, poh bee koon, khairul osman, srijit das, j. mohammad.  (2010).  plasma vitamin c and tocotrienols changes in response to dietary supplementation among young male adults.  - clinica terapeutica.  161(2):121-124. 

al-joudi, f.s., fahmi, a.k., ismarulyusda, i., khairul, o., norhazilah, m., siti fatimah, m.i., zulkefli, n.a., nurismah, m.i..  (2008).  investigating the expression of human mammaglobin in breast cancer tissue in malaysia: a preliminary report..  - simposium sains kesihatan kebangsaan ke 7.  . 

mohd iswadi ismail, siti fatimah ibrahim, khairul osman, norhazilah muhamad, mohd padzil a.rahman & abas mazni othman.  (2008).  evaluation of dna damage on post-thawed single sperm using neutral and alkaline comet assay.  - simposium sains kesihatan kebangsaan ke7, 18-19 jun 2008, kuala lumpur.  . 

siti fatimah ibrahim, khairul osman, srijit das, abas mazni othman, norzaiti abdul majid, mohd padzil abdul rahman.  (2008).  a study of the antioxidant effect of alpha lipoic acids on sperm quality.  - clinics.  64(3):545-50. 

k. osman, s. ibrahim, m. ismail, s. das, m. abd rahman and a. othman.  (2008).  data mining: relationship of sperm kinetics and dna integrity.  - reproduction, fertility & development.  20 (S422) : 102. 

siti fatimah ibrahim, khairul osman, norzaiti abdul majid, wan azimah wan daud, mohd iswadi ismail, abas mazni othman, mohd padzil abdul rahman..  (2007).  effect of alpha-lipoic acid on sperm quality.  - the 4th annual conference of the asian reproductive biotechnology society. tempat - singapura.  . 

siti hidayah n, khairul o, siti fatimah i, dayang fb, nurshaireen ca, ezlan e, zainul rashid mr, abas mazni o & nurhazilah m.  (2006).  kesan asid alfa lipoik terhadap kualiti sperma.  - 6th national symposium on health sciences, palace golden horses,kl.  . 

khairul osman, norashikin md saad, ezlan elias, siti fatimah ibrahim, jamaludin mohamed, proom proomwichit.  (2005).  protective effects of citrullus vulgaris on irradiated lymphocyte sub-membrane.  - journal sains kesihatan malaysia.  3(1):1-9. 

ezlan elias, khairul osman, sharifa abdul aziz, abdul halim mansar, siti fatimah ibrahim, jamaludin mohamed.  (2004).  determination of time of death based on basic histological stain and immunostain changes.  - jurnal sains kesihatan malaysia.  2(2):63-70.