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Abstrak :
Stroke merupakan manifestasi klinis gangguan sirkulasi darah di otak yang menyebabkan defisit neurologis. Delapan puluh persen stroke merupakan stroke non-hemoragik akibat oklusi pembuluh darah otak sehingga terjadi kerusakan sel saraf yang diinduksi oleh hipoksia. Kerusakan tersebut dapat dicegah oleh tanaman akar kucing (Acalypha indica Linn) yang mengandung antioksidan. Penelitian ini bertujuan untuk membuktikan efek neuroprotektif ekstrak akar Aindica L. terhadap hipokampus Sprague dawley pascahipoksia. Terdapat tiga kelompok yaitu (1) kontrol negatif dengan akuades, (2) kontrol positif dengan vitamin B1 dosis 30 mg/kgBB, dan (3) kelompok perlakuan dengan ekstrak akarA indica L.dosis 500 mg/kgBB. Setelah tujuh hari perlakuan, dilakukan ligasi arteri karotis komunis Sprague dawley selama satu jam untuk menciptakan kondisi hipoksia. Selanjutnya, dibuat sediaan hipokampus untuk menghitung jumlah sel normal.Penelitian ini menggunakan desain eksperimental dengan uji One Way Anova. Hasil uji One Way Anova menunjukkan rerata persentase jumlah sel normal tidak berbeda bermakna terhadap CA1 (p=0,343), CA3 (p=0,174), lapisan dalam girus dentatus (p=0,270), dan lapisan luar girus dentatus (p=0,422)pada ketiga kelompok. Namun secara kuantitatif, rerata persentase jumlah sel normal paling banyak ditemukan pada kelompok yang mendapatkan ekstrak akar A indica L.

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Stroke is a clinical manifestation of brain circulatory disorders causing neurological deficits. Eighty percents are non-hemorrhagic stroke resulting from vascular occlusion thus advancing the damage-induced hypoxia of hippocampal neuron. This damage can be prevented by Acalypha indica Linn which contents antioxidant. The purpose of this study is to prove the neuroprotective effect of A indica L root extract to hippocampus of Sprague dawley post-hypoxia. There are three groups: (1) negative control with aquades, (2) positive control with vitamin B1 dose 30 mg/kgBW, and (3) treatment group with Aindica L root extract dose 500 mg/kgBW. After treatment for seven days, we administered the ligation of common carotids for an hour to expose hypoxia. Then, the brain was made into hippocampal slices in order to count the number of normal cells. This study usedan experimentaldesignwithOne WayAnovatest. The results of One Way Anova test analysis showed that there are no significant differences between the mean of normal cells percentage in CA1 (p=0,343), CA3 (p=0,174), inner (p=0,270) and outer(p=0,422) layer of dentate gyrus among three groups. However quantitavely, the highest mean of normal cells percentage is found in the group receiving A indica L root extract.

Abstrak :
[ABSTRAK
Tujuan: Studi ini merupakan studi MRI (Magnetic Resonance Imaging) untuk menilai hubungan asimetrisitas volume, hiperintensitas T2WI FLAIR dan nilai ADC hippokampus hubungannya dengan lateralisasi kejang. Pemeriksaan MRI sekuens rutin ditambah prosedur khusus pemeriksaan hipokampus yaitu sekuens T2WI Inversion Recovery dan T2WI Fluid-attenuated inversion recovery (FLAIR) dapat menilai volume hipokampus. Sekuens DWI (Diffusion Weighted Image) dan ADC (Appearent Difusion Coeffesient) merupakan pemeriksaan kuantitatif. Metode: Penelitian potong lintang menggunakan data sekunder MRI kepala pasien dengan diagnosis epilepsi lobus temporal mesial. Dilakukan pengukuran volume pada potongan koronal sejajar sumbu hippokampus, mulai dari terlihat kepala hippokampus sebanyak 5 irisan. Melihat gambaran hiperintensitas T2WI FLAIR serta mengukur nilai ADC hippokampus dilakukan dengan meletakan ROI pada potongan aksial hippokampus terbesar pada ADC map. Analisis data dilakukan untuk menghitung nilai R Kappa hubungan masing masing variabel dan gabungan variabel. Hasil: Jumlah subyek penelitian 54 orang, terdapat hubungan asosiasi yang cukup kuat (sedang) dan ipsilateral antara hiperintensitas T2WI FLAIR dan asimetrisitas volume dengan lateralisasi kejang dengan R Kappa sama sebesar + 0.52. Hubungan asosiasi yang lemah dan bersifat ipsi lateral dengan R Kappa + 0.37 antara nilai ADC dengan lateralisasi kejang. Hubungan asosiasi antara asimetrisitas volume dan asimetrisitas nilai ADC adalah kontralateral dengan hubungan asosiasi cukup kuat (sedang). Penentuan lateralisasi lesi dengan MRI pada masing masing variabel memiliki sensitivitas dan spesifisitas cukup tinggi. Hubungan asosiasi gabungan 2 dan 3 variabel adalah cukup kuat (sedang) dan bersifat ipsilateral, dengan nilai R Kappa, sensitifitas dan spesifisitanya yang lebih tinggi dibandingkan dengan hubungan masing masing variabel. Kesimpulan: MRI memiliki peranan penting menentukan lateralisasi kejang. Menilai hubungan dari gabungan 2 dan 3 variabel didapatkan secara statistik lebih besar hubungannya dengan lateralisasi kejang dibandingkan dengan menghubungkan masing masing variabel secara terpisah, sehingga penilaian MRI yang dilakukan untuk ke 3 variabel ini akan lebih menguatkan diagnosis sisi hipokampus yang mengalami kelainan.

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ABSTRACT
Objective: This study is MRI ( Magnetic Resonance Imaging ) to assess the relationship asymmetry volume, T2WI FLAIR hyperintensity and hippocampal ADC values its relationship with the lateralization of seizures. Routine MRI examination sequences plus a special procedure that hippocampal examination Inversion Recovery sequence T2WI and T2WI Fluid-attenuated inversion recovery ( FLAIR ) can assess hippocampal volume. Sequences DWI ( Diffusion Weighted Image ) and ADC ( Appearent Diffusion Coeffesient ) is a quantitative examination. Methods: A cross-sectional study using secondary data MRI diagnosis of the patient's head with mesial temporal lobe epilepsy. Volume measurements performed on coronal slice axis parallel to the hippocampus, ranging from the visible head of the hippocampus as much as 5 slices. See picture T2WI FLAIR hyperintensity and measuring the ADC value hippocampus done by placing the ROI on axial cuts at the largest hippocampal ADC map. Data analysis was performed to calculate the value of R Kappa relationship each and combined variable. Results: There is a fairly strong association relationship (medium) and ipsilateral between T2WI FLAIR hyperintensity volume and asymmetry with lateralization of seizures with R Kappa equal to + 0.52. A weak association relationship and are IPSI lateral with R Kappa + 0.37 between the ADC values with lateralization of seizures. Association relationship between volume and asymmetry value asymmetry ADC is contralateral to the association relationship is strong enough (medium). Determination of lateralization of lesions by MRI in each variable has a fairly high sensitivity and specificity. The combined association relationship 2 and 3 variables are strong enough (medium) and ipsilateral, with a value of R Kappa, sensitivity and spesifisitanya higher than the correlation of each variable. Conclusion: MRI has an important role determining the lateralization of seizures. Assess the relationship of the combined second and third variables are statistically bigger obtained conjunction with lateralization of seizures compared to connecting each variable separately, so the MRI assessment carried out for 3 to this variable will further strengthen the diagnosis of hippocampal abnormalities., Objective: This study is MRI ( Magnetic Resonance Imaging ) to assess the relationship asymmetry volume, T2WI FLAIR hyperintensity and hippocampal ADC values its relationship with the lateralization of seizures. Routine MRI examination sequences plus a special procedure that hippocampal examination Inversion Recovery sequence T2WI and T2WI Fluid-attenuated inversion recovery ( FLAIR ) can assess hippocampal volume. Sequences DWI ( Diffusion Weighted Image ) and ADC ( Appearent Diffusion Coeffesient ) is a quantitative examination. Methods: A cross-sectional study using secondary data MRI diagnosis of the patient's head with mesial temporal lobe epilepsy. Volume measurements performed on coronal slice axis parallel to the hippocampus, ranging from the visible head of the hippocampus as much as 5 slices. See picture T2WI FLAIR hyperintensity and measuring the ADC value hippocampus done by placing the ROI on axial cuts at the largest hippocampal ADC map. Data analysis was performed to calculate the value of R Kappa relationship each and combined variable. Results: There is a fairly strong association relationship (medium) and ipsilateral between T2WI FLAIR hyperintensity volume and asymmetry with lateralization of seizures with R Kappa equal to + 0.52. A weak association relationship and are IPSI lateral with R Kappa + 0.37 between the ADC values with lateralization of seizures. Association relationship between volume and asymmetry value asymmetry ADC is contralateral to the association relationship is strong enough (medium). Determination of lateralization of lesions by MRI in each variable has a fairly high sensitivity and specificity. The combined association relationship 2 and 3 variables are strong enough (medium) and ipsilateral, with a value of R Kappa, sensitivity and spesifisitanya higher than the correlation of each variable. Conclusion: MRI has an important role determining the lateralization of seizures. Assess the relationship of the combined second and third variables are statistically bigger obtained conjunction with lateralization of seizures compared to connecting each variable separately, so the MRI assessment carried out for 3 to this variable will further strengthen the diagnosis of hippocampal abnormalities.]

Abstrak :
Overtraining syndrome adalah menurunnya kapasitas fisik, emosi dan imunitas akibat pelatihan yang terlalu sering tanpa periode istrahat yang cukup. Overtraining berdampak pada penurunan kadar BDNF dan memori pada atlet. Penelitian ini bertujuan untuk melihat pengaruh latihan fisik aerobik overtraining terhadap kadar brain derived neurotrophic factor (BDNF) dan memori pada tikus. Metode penelitian eksperimental dengan subjek penelitian tikus (Rattus norvegicus) galur Wistar jantan dewasa, 8-10 minggu, berat badan 200-250 gr. Terbagi atas kelompok kontrol, aerobik dan overtraining. Hasil pengukuran ditemukan kadar BDNF pada kelompok overtraining lebih rendah daripada kelompok aerobik dan kontrol. Terdapat perbedaan kadar BDNF pada kelompok Aerobik dan overtraining (p = 0,002). Hasil uji memori dengan water-E maze menunjukkan peningkatan durasi waktu dan jumlah kesalahan yang dilakukan oleh kelompok overtraining (p = 0.03). Dari penelitian ini disimpulkan latihan fisik aerobik overtraining dapat menurunkan kadar BDNF dan memori pada tikus. ...... Overtraining syndrome is the reduced capacity of the aspects of the physical work, emotions and immunity as a result of the type, intensity, duration and frequency of training too often without sufficient resting period. Overtraining impact on BDNF levels and memory decline in athletes. This study aimed to examine the effect of aerobic physical exercise overtraining on BDNF levels and memory in the rat brain. Experimental research methods to study. Subjects were rats (Rattus norvegicus) adult male Wistar strain, aged 8-10 weeks, initial body weight between 200-250g. Divided into 3 groups: control, aerobic and overtraining. The test results mean BDNF levels are the lowest seen in the group of overtraining. The results of statistical tests are the most significant differences in the mean levels of BDNF Aerobic and overtraining group with p = 0.002. The results of the memory test with a water-maze E showed increased duration and the number of errors made by the overtraining group (p = 0:03). This study suggests that overtraining can affect the decrease in BDNF levels and memory in mice.

Abstrak :
ABSTRAK Latar belakang: Overtraining merupakan permasalahan bagi peningkatan prestasi olahraga karena dapat menurunkan performa seorang atlet. Penurunan performa diduga disebabkan adanya gangguan pembelajaran dan memori. Stres oksidatif pada overtraining berdampak pada penurunan protein CREB dan BDNF yang berperan dalam plastisitas sinaps dan pembentukan memori jangka panjang. Pemberian ekstrak air Hibiscus sabdariffa L. diharapkan dapat mengatasi stres oksidatif pada overtraining. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak air Hibiscus sabdariffa L. terhadap kadar CREB pada hipokampus tikus overtraining. Metode: Penelitian ini merupakan eksperimental. Sampel menggunakan homogenat hipokampus tikus (n=24) yang dibagi menjadi empat kelompok. Terbagi atas kelompok kontrol (K), ekstrak air H. sabdariffa L. 400 mg/kgBB/hari (H), aerobik overtraining (AO), dan overtraining diberi ekstrak air H. sabdariffa L. 400 mg/kgBB/hari (OH). Hasil: Hasil pengukuran ditemukan terdapat perbedaan bermakna antara kadar CREB pada kelompok aerobik overtraining dan overtraining diberi ekstrak air H. sabdariffa L. (p=0,007). Tidak terdapat korelasi antara kadar CREB dan kadar BDNF pada kelompok aerobik overtraining dan diberikan ekstrak air H. sabdariffa L. 400 mg/kgBB/hari (r=0,746, p=0,088). Kesimpulan: Pemberian ekstrak air H. sabdariffa L. 400 mg/kgBB/hari meningkatkan kadar protein CREB pada hipokampus tikus overtraining. Tidak terdapat korelasi antara protein CREB dengan BDNF pada kelompok aerobik overtraining dan diberikan ekstrak air H. sabdariffa L. 400 mg/kgBB/hari.

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ABSTRACT Introduction: Overtraining is a problem in athlete cause it can decrease athlete?s performance. Performance decreases in athlete may caused by learning and memory impairment. Oxidative stress in overtraining may decreases CREB and BDNF levels which involved in synaptic plasticity and long term memory formation. Aqueous extract of Hibiscus sabdariffa L. administration can prevent oxidative stress in overtraining. The aim is to know the effect of aqueous extract of Hibiscus sabdariffa L. to CREB levels in hippocampus of overtraining rats. Methods: This research was experimental. Sample used rats hippocampus homogenate (n=24) which were divided into four groups: control (K), aqueous extract of H. sabdariffa L. (H), aerobic exercise overtraining (AO), and overtraining given aqueous extract of H. sabdariffa L. (OH). Results: Research found CREB levels increased significantly in the OH group than AO group (p=0,007). There was no correlation between CREB levels and BDNA levels in overtraining rats given aqueous extract of H. sabdariffa L. (r=0,746, p=0,088). Conclusion: Aqueous extract of H. sabdariffa L. administration could increase CREB levels in hippocampus of overtraining rats. There was no correlation between CREB and BDNA proteins in overtraining rats given aqueous extract of H. sabdariffa L.

Abstrak :
ABSTRAK BDNF merupakan neurotrophin yang berperan dalam fungsi memori dan pembelajaran. Hippocampus banyak mengekspresikan BDNF, yang penting dalam mengatur fungsi memori. Penelitian ini bertujuan untuk mengetahui pengaruh latihan aerobik ringan terhadap ekspresi BDNF, jumlah total sel piramidal di area CA3 hippocampus, fungsi memori dan rasio luas area CA3 terhadap total area CA1, CA2 dan CA3 hippocampus. Penelitian eksperimental ini menggunakan 12 ekor tikus jantan wistar (berusia 8-10 minggu, berat badan 200- 250 gram), dibagi menjadi kelompok aerobik ringan dan kontrol. Latihan aerobik menggunakan animal treadmill (kecepatan 12m/mnt, 2x/minggu, 11 minggu) dan diuji dengan water E-maze (jumlah kesalahan dan waktu tempuh) untuk fungsi memorinya. Ekspresi BDNF diarea CA3 dinilai dengan pewarnaan immunohistokimia, jumlah total sel piramidal area CA3 hippocampus dan rasio luas area CA3 terhadap total area CA1, CA2, CA3 area hippocampus dinilai dengan pewarnaan Hematoksilin Eosin. Hasil pengamatan ini menunjukkan ada kecenderungan peningkatan ekspresi BDNF dan jumlah total sel piramidal area CA3 hippocampus, walaupun secara statistik tidak bermakna. Rasio luas area CA3 terhadap total area CA1, CA2, CA3 antara kelompok aerobik ringan dan kontrol, tidak menunjukkan perbedaan yang bermakna. Terdapat penurunan jumlah kesalahan dan waktu tempuh pada kelompok aerobik ringan. Perbaikan fungsi memori ini berkorelasi kuat dengan peningkatan ekspresi BDNF pada kelompok aerobik ringan. Disimpulkan, terdapat pengaruh positif latihan aerobik ringan terhadap fungsi memori melalui peningkatan ekspresi BDNF.

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ABSTRACT BDNF is a neurotrophin that plays a role in memory and learning functions. The hippocampus shows the expression of BDNF which is important in regulating memory functions. This study aims to determine the effect of mild aerobic exercise on the expression of BDNF, the number of total cells CA3 area of the hippocampus, and memory functions. This is analytic experimental using 12 male Wistar rats (8-10 weeks old, weight 200-250 mg), divided into mild aerobics and control group. The aerobic exercise using an animal treadmill (10 min twice a week, for 11 weeks). Memory test was done using water E-maze test. Used Immunohistochemistry staining to assessed the expression of BDNF and Hematoxylin Eosin staining to assessed the number of total cells CA3 area of hippocampus and CA3 area ratio to the total area CA1, CA2, CA3 hippocampal area. The results showed the tendency in the expression of BDNF, the total number of cells and memory function between mild aerobic and control group. CA3 area ratio to the total area CA1, CA2, CA3 hippocampal area, there were no differences between mild aerobic and control groups. There was a decreased in the number of errors and time in group aerobics. Improvement of memory function is strongly correlated with increased expression of BDNF in group aerobics. Conclusion, the mild aerobic exercise has a positive influence on memory function through increased expression of BDNF.

Abstrak :
ABSTRAK Latihan fisik aerobik kompleks diduga lebih baik dari latihan fisik aerobik sederhana dalam meningkatkan fungsi kognisi dan neuroplastisitas pada usia pertumbuhan Tesis ini membahas efek latihan fisik aerobik kompleks yang dimulai sejak usia remaja dibandingkan dengan yang baru dimulai pada usia dewasa muda terhadap kadar PSD 95 dan fungsi kognisi mencit Penelitian ini menggunakan desain studi eksperimental in vivo Hasil penelitian menunjukkan tidak ada perbedaan bermakna hasil uji kognisi dan kadar PSD 95 pada mencit yang diberi latihan fisik aerobik kompleks sejak remaja dibandingkan dengan yang dimulai sejak usia dewasa muda Selain itu tidak ada perbedaan bermakna kadar PSD 95 dan fungsi kognisi antara mencit yang diberi latihan fisik aerobik kompleks dan yang sederhana Diduga latihan fisik aerobik kompleks yang tidak bervariasi dan dilakukan secara berkepanjangan dapat menimbulkan kebosanan Oleh karenanya penerapan latihan fisik aerobik kompleks yang bervariasi mungkin dapat meningkatkan fungsi kognisi karena subyek lebih termotivasi untuk melakukan latihan.

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ABSTRACT Complex aerobic exercise was expected having better effect on cognitive function and neuroplasticity compared to simple aerobic exercise in developmental age The aim of this study was to identify the effect of complex aerobic exercise on PSD 95 and cognitive function in mice applied in adolescence age and early adult age This research was an in vivo experimental study There was no significant difference between cognitive function and PSD 95 levels in adolescence age compared to early adult age mice In addition there was no significant difference cognitive function and PSD 95 levels in mice trained with complex aerobic exercise and simple aerobic exercise It was suspected that invariability of complex aerobic exercise could induce boredom Consequently variation of complex aerobic exercise is important in order to increase motivation of the subjects in doing the exercise that could increase their cognitive function.

Abstrak :
Memori merupakan fungsi kognisi yang sangat penting pada manusia.Latihan fisik dan paparan environmental enrichment EE memiliki pengaruh positifterhadap fungsi memori melalui peningkatan neurogenesis dan LTP. Penelitian iniingin mengetahui perbedaan pengaruh latihan fisik aerobik, paparan EE, dankombinasi latihan fisik aerobik dengan EE, terhadap fungsi memori tikus. Dua puluhempat tikus Wistar jantan usia 7 bulan diberikan perlakuan selama 8 minggu. Fungsimemori diuji menggunakan perangkat forced alternation Y-maze dengan parameterpersentase perbandingan waktu di novel arm dan forced alternation. Fungsi memorijuga ditinjau berdasarkan ekspresi protein BDNF dan NGF hipokampus tikus. Hasilpenelitian menunjukkan bahwa kadar BDNF dan NGF hipokampus paling tinggi p. ...... Memory is an important cognitive function in humans. Exercise and environmentalenrichment EE exposure have positive effects on memory function via improvedneurogenesis and LTP. This study aimed to analyze the effect of aerobic exercise,EE exposure, and combination of aerobic exercise and EE on memory function. Thisstudy used twenty four 7 month old male Wistar rats that were given treatment for 8weeks. Memory function was tested using forced alternation Y maze, with themeasure parameters are percentage of time in novel arm and forced alternation.Memory function was also correlated with the expression of BDNF and NGFproteins in hippocampus. The results showed the highest level of hippocampalBDNF and NGF p.

Abstrak :
ABSTRAK Bising merupakan dampak yang timbul mengikuti kemajuan industri yang dapat dirasakan termasuk oleh ibu hamil. Pajanan bising saat kehamilan diketahui dapat mengganggu pertumbuhan dan perkembangan janin. Sebaliknya musik dapat memberikan efek positif dalam berbagai reaksi fisiologis, yaitu kognisi, emosi, dan imunitas. Akan tetapi, belum diketahui dampak gabungan pajanan keduanya saat prenatal, serta pengaruhnya terhadap fungsi otak, khususnya hippocampus yang berperan dalam kognisi dan memori spasial. Penelitian ini bertujuan untuk mengetahui apakah pajanan suara gabungan (musik dan bising) dapat mengkompensasi dampak negatif bising pada perkembangan hippocampus. Penelitian dilakukan dengan membandingkan pengaruh pajanan suara musik, bising dan kombinasinya selama perkembangan prenatal terhadap fungsi hippocampus neonatus Gallus gallus domesticus. Telur yang telah difertilisasi diinkubasi dalam mesin tetas yang dilengkapi pengeras suara untuk tiga jenis suara, yaitu musik, bising dan gabungan, serta sebuah kelompok kontrol. Pajanan suara diberikan sejak embrio berusia 10 hari sampai menetas. Selanjutnya dilakukan penilaian memori spasial menggunakan labirin T, penimbangan berat otak, penghitungan jumlah neuron dengan pewarnaan Hematoxylin eosin, serta penilaian ekspresi protein BDNF pada hippocampus dengan pewarnaan imunohistokimia. Hasil menunjukkan tidak ada perbedaan bermakna berat otak pada masing-masing kelompok. Selain itu, pajanan musik dapat memfasilitasi pembentukkan memori spasial didukung dengan peningkatan jumlah neuron dan ekspresi protein BDNF pada hippocampus; sebaliknya pajanan bising menginhibisi konsolidasi memori spasial, menurunkan jumlah neuron dan ekspresi BDNF di hippocampus. Pajanan gabungan memberikan hasil yang tidak berbeda dengan kelompok kontrol pada tiap parameter. Disimpulkan bahwa pajanan gabungan dapat mengkompensasi

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ABSTRACT Noise has become a critical issue following industrial evolution, especially pregnant women. Noise exposure during prenatal period may disrupt fetal growth and development. Otherwise, music gives various positive physiological responses to the development of cognition, emotion, and immunity. However, the effect of combination of both sound during prenatal to brain, especially hippocampus that manage cognition and spatial memory has never been studied. This research aimed to know whether combination of music and noise exposures can compensate negative effect of noise in hippocampus development. Research conducted by comparing the effect of music, noise and combination of both exposures during prenatal development to the function of Gallus gallus domesticus neonate hippocampus. Fertilized eggs were incubated in hatchery machine equipped with a loud speaker for three exposures groups, i.e. music, noise and combination, and a control group; given from E10 until hatching. Data collected for evaluation were spatial memory assessment that was done using T-maze, brain weight, total hippocampus neuron number and BDNF expression in hippocampus. As result, there was no significant difference in brain weight among these groups. Furthermore, prenatal music stimulus enhanced spatial memory formation supported by the increasing number of total neuron and BDNF expression in hippocampus. Besides, prenatal noise stimulus elicited spatial memory inhibition, decreased of total neuron number and BDNF expression in hippocampus. Combination group showed no significant result compare to control group in each measurements. In conclusion, combination of both music and noise stimulus during prenatal period could compensate the negative effect of prenatal noise exposure.

Abstrak :
Monosodium glutamat (MSG) merupakan penyedap rasa makanan yang sangat sering digunakan. Beberapa penelitian menunjukkan bahwa MSG dalam dosis tinggi dapat bersifat neurotoksik/eksitotoksik bagi sel saraf di sistem saraf pusat. Penelitian ini bertujuan untuk mengetahui pengaruh MSG terhadap pembentukan memori khususnya memori spasial dan pengaruh MSG terhadap selsel saraf di hipokampus mengingat area ini sangat berperan dalam proses pembentukan memori. Subjek penelitian adalah 25 ekor tikus putih jantan galur Sprague Dawley (berusia 8-10 minggu, berat 150-200 gr) yang dibagi menjadi 5 kelompok (dua kelompok kontrol dan tiga kelompok perlakuan masing-masing mendapat MSG sebanyak 2 mg/gr, 4 mg/gr dan 6 mg/gr yang diberikan secara oral selama 30 hari). Uji memori spasial dilakukan dengan menggunakan water-E maze, sebelum pemberian MSG dimulai dan setiap minggu hingga minggu ke-4 (dilakukan 5x pengujian). Setelah hari terakhir pemberian MSG, seluruh hewan coba dikorbankan. Jaringan otak diambil dengan hati-hati, segera difiksasi dalam cairan formalin untuk selanjutnya diwarnai dengan pewarnaan HE. Data hasil penelitian dianalisis dengan one way ANOVA dan dilanjutkan dengan uji Post Hoc. Hasil uji memori dengan perangkat water-E maze menunjukkan adanya peningkatan jumlah kesalahan yang dilakukan oleh kelompok perlakuan dosis 4 mg/gr dan 6 mg/gr serta peningkatan durasi waktu yang dibutuhkan oleh semua kelompok perlakuan untuk menyelesaikan uji memori yang signifikan dibandingkan dengan kelompok kontrol setelah pemakaian MSG selama 30 hari. Gambaran histologi hipokampus menunjukkan peningkatan persentase kerusakan sel saraf di hipokampus pada seluruh kelompok perlakuan yang signifikan dibandingkan dengan kelompok kontrol. Penggunaan MSG dalam dosis tinggi seperti yang digunakan pada penelitian ini menyebabkan terjadinya kerusakan sel saraf di hipokampus tikus dan menurunkan fungsi pembentukan memori spasial. ...... Monosodium glutamate (MSG) is commonly used as a flavor enhancer in modern nutrition. Recent studies have shown that high dose of MSG was neurotoxic/excitotoxic to neuronal cells in Central Nervous System. The present study aimed to investigate the effect of MSG on spatial memory formation and neuronal cells in hippocampus which play the role in forming memory. Twenty five male albino Sprague Dawley rats (age: 8-10 weeks, weight: 150-200 gr) were divided into five groups (two control groups and three treated groups with varying doses of MSG: 2mg/gr, 4 mg/gr and 6 mg/gr respectively received MSG dissolved in normal saline by oral gavage for a period of 30 days). To measure the spatial memory, the animals were exposed to the water-E maze before treatment and every week until the 4th week (5 times measurement). The rats were sacrified after the last day of MSG treatment. The brain was carefully dissected out and quickly fixed in 10% buffered formaldehyde and then stained with HE staining. Result were analyzed by one way ANOVA followed by a Post Hoc test. Water-E maze performance showed a significant increase in the number of errors in the 4 mg/gr and 6 mg/gr MSG treated groups and increase duration time to finish the spatial memory task in all treated groups compared to control groups after 30 days of MSG treatment. Histological structure of hippocampal showed significant increase in the percentage of neuronal cells damage. The study conclude that high dose of MSG at the doses administered was damaged neuronal cells in the rat's hippocampus and impaired the spatial memory formation.

Abstrak :
Overtraining meningkatkan IL-1B sistemik akibat mikrotrauma otot sehinggga memengaruhi hipokampus yang penting dalam pembentukan konsolidasi memori spasial. Pemberian H. sabdariffa diharapkan menurunkan IL-1? dan meningkatkan IL-1ra sehingga berpotensi mencegah gangguan konsolidasi memori spasial. Penelitian ini menggunakan metode eksperimental terhadap 20 tikus Wistar jantan Rattus norvegicus, 250-300 gram , terbagi ke dalam 4 kelompok yaitu kontrol C , kontrol H. sabdarifa C-Hib , latihan fisik overtraining OT dan latihan fisik overtraining yang diberi H. sabdarifa OT-Hib . Pemberian ekstrak metanol H. sabdariffa 500 mg/kgBB berpotensi sebagai antiinflamasi melalui peningkatan sitokin antiinflamasi IL-1ra plasma darah secara bermakna sehingga mencegah gangguan fungsi konsolidasi memori spasial tikus overtraining. ...... Overtraining lead to increase IL 1 systemically due to muscle mikrotrauma that affect hippocampus which was important in the formation of spatial memory consolidation. Administration H. Sabdariffa is expected to decrease IL 1 and increases IL 1ra thereby potentially preventing impairment of spatial memory consolidation. This research is an experimental study using 20 male Wistar rats Rattus norvegicus, 250 300 g were divided into 4 groups control C , H. sabdarifa control C Hib , physical exercise overtraining OT and physical exercise overtraining by H. sabdarifa OT Hib . Administration of the methanolic extract of H. Sabdariffa 500 mg kg body weight was a potential anti inflammatory by increase anti inflammatory cytokines IL 1ra in blood plasma so that prevent the impairment of spatial memory consolidation in overtraining Wistar rat.