Hasil Pencarian

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Hasil Pencarian

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Wa Ode Heni Satriani
"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.

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.
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Lengkap +
Fakultas Kedokteran Universitas Indonesia, 2015
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Pasaribu, Saadatur Rizqillah
"ABSTRAK
Nervus ischiadicus tikus umum digunakan sebagai model dalam evaluasi cedera dan regenerasi saraf perifer., yang menjadi nervus tibialis dan nervus peronealis. Penilaian pemulihan fungsi saraf setelah cedera, digunakan Sciatic functional index (SFI) untuk nervus ischiadicus, tibial functional index (TFI) untuk nervus tibialis dan peroneal functional index (PFI) untuk nervus peronealis. Sedangkan informasi mengenai kisaran gerak (ROM/range of motion) fleksiektensi setiap sendi dari siklus berjalan dapat dianalisis dengan pengukuran sudut pergelangan kaki belakang.
Penelitian ini merupakan penelitian eksperimental analitik yang bertujuan mengetahui korelasi antara tingkat pemulihan nervus ischiadicus pasca cedera akut dengan TFI, PFI, dan sudut sendi pergelangan kaki belakang. Dua belas ekor tikus jantan Sprague Dawley dibagi menjadi kelompok cedera (nervus ischiadicus dipotong dan dijahit kembali; n=6) dan sham (n=6), diobservasi pemulihannya hingga hari ke-59 dengan jarak antar pemeriksaan tujuh hari. Pemulihan fungsi dinilai dengan melakukan analisis berjalan yang meliputi analisis jejak kaki dan sudut sendi dengan serial foto.
Hasil penelitian menunjukkan peningkatan pemulihan nervus ischiadicus diikuti dengan perbaikan nilai TFI dan PFI, dengan kecepatan perbaikan nilai PFI mendahului TFI. Analisis Spearman menunjukkan korelasi kuat antara tingkat pemulihan dengan TFI (r=0,978) dan PFI (r=0.836). Tingkat pemulihan juga berkorelasi dengan sudut pergelangan kaki, yaitu fase midstance (MSt; r = 0.438). Hasil penelitian ini menunjukkan bahwa pemulihan nervus ischiadicus akan diikuti dengan pemulihan cabang-cabangnya, dengan pemulihan cabang peroneal lebih cepat dibandingkan cabang tibial.

ABSTRACT
The sciatic nerve (nervus ischiadicus) of rats is commonly used as the model in the evaluation of injury and peripheral nerves. This nerve branches into tibial nerve and peroneal nerve. In the assessment of nerve function recovery level post injury, Sciatic functional index (SFI) is used to analyze sciatic nerve, tibial functional index (TFI) is to assess tibial nerve, and peroneal functional index (PFI) is to examine peroneal nerve. The information on the ROM (range of motion) of the flexion and extension of each joint at each phase of the walking gait cycle can be analyzed by measuring the ankle joint angle of the hind foot.
This study is an analytical and experimental research aiming to discover the correlation between the recovery level of acute sciatic nerve injury and TFI, PFI, and the ankle joint angle of the hind foot. Twelve male Sprague dawley rats were divided into injury group (the sciatic nerve was cut and had end-to-end nerve repair; n=6) and sham group (n=6); their recoveries were observed periodically until the 59th day with seven day distance between each examination. Functional recovery level was assessed by conducting walking gait analysis which included the analysis of footprints and ankle joint angle with a series of photos.
The results of the study showed that the increase in the recovery level of the sciatic nerve is followed by the improvement of TFI and PFI values, with the improvement of PFI value being faster than that of TFI value. Analysis using the Spearman test showed the strong correlation between recovery level and TFI (r = 0,978) and PFI (r = 0.836). Recovery level also correlates with ankle joint angle, which is at the midstance phase (MSt; r = 0.438). The study results pointed out that the recovery level of sciatic nerve will be followed by the recovery level of its branches, with peroneal branch recovering faster than tibial branch.
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Lengkap +
Depok: Fakultas Kedokteran Universitas Indonesia, 2015
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Gulshan Fahmi El Bayani
"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.
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Lengkap +
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2016
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Muhammad Irfannuddin
"Olahraga aerobik terbukti mampu meningkatkan struktur dan fungsi kognitif. Data tentang jenis olahraga aerobik yang terbaik untuk menjaga keseimbangan oksidatif, serta memicu angiogenesis dan neuroplastisitas di berbagai regio otak masih terbatas. Penelitian ini menganalisis pengaruh olahraga aerobik halang rintang terhadap kadar neuroglobin otak, protein pemicu angiogenesis, neuroplastisitas di hipokampus dan korteks prefrontal, serta fungsi memori relasional. Mencit Mus musculus CBS-Swiss strain jantan berusia 10 bulan dilatih berlari di roda berjalan yang diberi halang rintang, berlari dengan kecepatan 10 m/menit, 30 menit/hari, 5 hari/minggu sambil melewati halang rintang untuk setiap 78 cm. Tiga jenis halang rintang diganti setiap 3 hari. Kelompok pembanding adalah mencit yang berlari dengan kecepatan dan waktu yang sama, namun tanpa halang rintang, serta kelompok kontrol yang tidak berolahraga. Kadar neuroglobin otak tidak berbeda bermakna pada tiga kelompok mencit. Latihan lari halang rintang memberikan efek lebih baik dibanding lari tanpa halang rintang pada kadar developmentally regulated brain protein-A (drebrin-A) di hipokampus. Kedua kelompok olahraga memiliki efek yang lebih baik dibanding kontrol pada ekspresi vascular endothelial growth factors (VEGF), kadar drebrin-A, dan paired associative cognitive test. Olahraga aerobik kompleks memicu neuroplastisitas yang lebih baik dibanding aerobik sederhana di hipokampus. Kedua tipe olahraga aerobik mampu meningkatkan angiogenesis dan neuroplastisitas di otak, dan meningkatkan kemampuan memori relasional. Olahraga aerobik tidak meningkatkan kadar neuroglobin secara bermakna. Hal ini menunjukkan bahwa intensitas olahraga aerobik memberikan efek hipoksia yang dapat ditoleransi oleh jaringan otak.

Aerobic exercise has been proven to improve of cognitive structure and function. Study about the type of aerobic exercise affects on angiogenesis, neuroplasticity and oxidative homeostasis in brain?s specific regions is still limited. The present study was conducted to investigate the effects of hurdle aerobic exercise on brain neuroglobin level, angiogenesis and neuroplasticity proteins in hippocampus and prefrontal cortex, and relational memory among middle aged CBS-Swiss strain mice. Mice, age 10 months were subjected to hurdle running wheel for 8 weeks. They ran at speed of 10 m/min, 30 min/day, and 5 days/week with hurdles for every 78 cm. Three types of hurdles were changed for every 3 days. Another group of same age mice ran at same speed, time, and period, without hurdle as comparison, while other control group never exercises. The hurdle group exercise has significant higher level of developmentally regulated brain protein-A (drebrin- A) in hippocampus compared to non-hurdle group. Both of exercise groups have significant higher ability on paired associative cognitive test, and they have significant higher expression of vascular endothelial growth factor (VEGF) and higher level of drebrin-A compared to control. Neuroglobin level was not significant different among of all groups. More complex aerobic exercise has better effect on hippocampus neuroplasticity. Both of aerobic exercise has better effect on angiogenesis and neuroplasticity in the brain, and also on cognitive function. Aerobic exercise does not resulting high hypoxic stress and could be tolerated by brain.
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Lengkap +
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2015
D-Pdf
UI - Disertasi Membership  Universitas Indonesia Library
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Dewi Irawati Soeria Santoso
"Latar belakang. Latihan fisik yang dijalankan secara teratur dengan intensitas dan durasi tertentu akan merangsang remodeling jantung sebagai usaha untuk mempertahankan fungsi ventrikel terhadap peningkatan beban biomekanik pada jantung. Diperkirakan bahwa latihan fisik jangka panjang menimbulkan remodeling jantung menyerupai hipertrofi kardiomiopati, berupa hipertrofi miosit dengan kekacauan tatanan miosit, fibrosis, apoptosis dan ko-lokalisasi gap junction. Tujuan penelitian. Mengetahui dampak latihan fisik jangka panjang dan henti-latih pada remodeling kardiomiosit.
Metode penelitian. Penelitian eksperimental in vivo pada tikus Wistar ini dilakukan di Departemen Biokimia dan Biologi Molekuler, Laboratorium Imunohistologi Departemen Patologi Anatomi dan Bagian Fisiologi, FKUI. Latihan fisik dengan intensitas dan jangka waktu latihan yang berbeda, serta henti latih setelah periode latihan diterapkan pada tikus Wistar jantan dewasa muda. Dilakukan analisis terhadap perubahan morfologi kardiomiosit, fibrosis, apoptosis (ekspresi Caspase-3, Bax dan Bcl-2), gap junction (ekspresi Connexin43) dan pola EKG. Perubahan morfologi kardiomiosit diamati menggunakan pulasan Hematoxylin Eosin, fibrosis diamati menggunakan pulasan Masson?s Trichrome, sedangkan ekspresi Caspase-3, Bax, Bcl-2 dan Connexin43 diamati melalui pulasan imunohistokimia. Rekaman EKG dilakukan dengan filter 100 Hz, pada kecepatan kertas 50 mm/detik dan kepekaan 1 mV = 20 mm.
Hasil dan pembahasan. Hasil penelitian ini menunjukkan bahwa latihan aerobik dan anaerobik menimbulkan hipertrofi eksentrik dengan peningkatan fibrosis dan apoptosis serta ko-lokalisasi gap junction ke arah lateral membran. Perubahan kardiomiosit, peningkatan fibrosis dan apoptosis lebih nyata pada latihan anaerobik dibandingkan latihan aerobik. Pola EKG menunjang adanya pembesaran ventrikel akibat latihan aerobik dan anaerobik disertai gangguan repolarisasi yang nyata terutama pada latihan anaerobik. Henti latih tidak mengembalikan morfologi miosit, apoptosis dan lokalisasi gap junction ke keadaan semula. Pola EKG setelah periode henti latih pada latihan aerobik tetap menunjukkan adanya hipertrofi ventrikel tanpa gangguan penghataran impuls yang berarti, namun pada latihan anaerobik tetap didapatkan gangguan repolarisasi berupa pemanjangan interval QTc yang bermakna.
Kesimpulan. Remodeling kardiomiosit akibat latihan fisik jangka panjang tidak menyerupai struktur hipertrofi kardiomiopati, namun disertai peningkatan apoptosis, kolokalisasi Cx43 dan gangguan penghantaran impuls. Henti-latih tidak memulihkan remodeling jantung maupun gangguan penghantaran impuls listrik.

Background. Regular physical exercise with certain intensity and duration stimulates remodeling of the heart as an effort to preserve ventricular function against an increased biomechanical load. It is postulated that long-term exercise induces cardiac remodeling that resemble cardiomyopathy hypertrophy marked by cardiomyocyte disarray, fibrosis, apoptosis and co-localization of gap junction. Research objective. To study the effect of long-term physical exercise and detraining on cardiomyocyte remodeling.
Methodology. This in vivo experimental study was conducted at the Departement of Biochemistry and Molecular Biology, Immunohistology Laboratory of Departement of Pathological Anatomy and Departement of Physiology FMUI. Physical exercise with different intensity and periods of training was performed in groups of young adult male Wistar rats, followed by a period of detraining. Analysis of cardiomyocyte morphological changes, fibrosis, apoptosis (expression of Caspase-3, Bax and Bcl-2), gap junctions (expression Connexin43) and ECG pattern was conducted. Changes in cardiomyocyte morphology was observed using Haematoxylin Eosin staining, fibrosis was observed using Masson's Trichrome staining, whereas the expression of Caspase-3, Bax, Bcl-2 and Connexin43 was observed through immunohistochemical staining. ECG recording was done with a filter of 100 Hz, the paper speed of 50 mm/sec and the sensitivity of 1 mV = 20 mm.
Results and discussion. The results showed that aerobic and anaerobic exercises cause the development of eccentric hypertrophy, with increased fibrosis and apoptosis as well as co-localization of gap junction to the lateral site of the membrane. Cardiomyocyte remodeling, fibrosis and apoptosis were more prominent in anaerobic compared to aerobic exercise group. The ECG pattern supports enlargement of the ventricles due to aerobic and anaerobic exercises with noticeable repolarization disturbances, especially in the anaerobic group. Detraining did not return myocyte morphology, apoptosis and localization of gap junctions to its basic state. The ECG pattern after a period of detraining following aerobic exercise supports the existence of ventricular hypertrophy without significant disturbances in impulse conduction, however repolarization disturbances in the form of significant prolongation of QTc interval persist in the group with anaerobic exercise.
Conclusion. Cardiomyocyte remodeling due to long-term physical exercise did not resemble cardiomyopathy hypertrophy structure, although increased apoptosis, colocalization of Cx43 and distrbances in impuls conduction were observed. Detraining did not restore cardiac remodeling and disturbances in electrical impulse conduction.
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Lengkap +
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2015
D-Pdf
UI - Disertasi Membership  Universitas Indonesia Library
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Rusdi
"Penelitian ini bertujuan untuk menganalisis manfaat vitamin E untuk menurunkan kadar F2a-isoprostan, mempertahankan fluiditas dan aktivitas enzim Na*-K? ATPase membran sel sinsitiotrofoblas jaringan plasenta penderita pre-eklampsia. Sampel plasenta diambil dari RSB Budikemuliaan, Tanah Abang Jakarta Pusat. Penelitian dilakukan pada bulan September 2003 - Maret 2005. Isolasi sel dan membran sel sinsitiotrofoblas dilakukan berdasarkan metode yang dikembangkan oleh Smith et ai. (1977), Rand (1997), dan Lodish (2000).
F2a-isoprostan diisolasi dengan kromatografi dan diukur dengan kit F2a-isoprostan menggunakan ELISA Reader pada JL = 450 nm. Fluiditas dihitung dengan rasio molar kadar kolesterol:fosfolipid. Kolesterol diukur menggunakan Modular C800 dan fosfolipid diukur dengan spektrofluorometer Shimadzu RF5301PC dengan filter eksitasi 267 nm dan emisi 307 nm. Probe fosfolipid adalah 1,6-difenil-1,3,5-heksatrin (DPH) dan pelarut tetrahidrofuran. Aktivitas enzim Na*-K? ATPase diukur dengan spektrofotorneter pada it = 660 nm. Kadar protein diukur dengan spektrofotometer pada IL = 280 nm. Data dianalisis dengan Anava 1 Arah dan dilanjutkan dengan uji LSD (Least Significant Difference).
Dari penelitian ini diperoleh hasil: (1) kadar F2a-isoprostan membran sel sinsitiotrofoblas plasenta fetalis pada penderita pre-eklampsia yang mendapat vitamin E lebih rendah secara sangat bermakna dibanding pada penderita pre-eklampsia yang tidak mendapat vitamin E (p < 0,01), (2) membran sel sinsitiotrofoblas plasenta fetalis pada penderita pre-eklampsia yang mendapat vitamin E lebih 'fluid' dibanding penderita pre-eklampsia yang tidak mendapat vitamin E secara bermakna (p < 0,05), (3) pemberian vitamin E tidak mempengaruhi aktivitas enzim Na'-K* ATPase membran sel sinsitiotrofoblas plasenta fetalis pada penderita pre-eklampsia (p > 0,05).
Dari hasil penelitian ini disimpulkan bahwa vitamin E mampu:
(1) menurunkan kadar F2a-isoprostan dan
(2) mempertahankan fluiditas membran sel sinsitiotrofoblas plasenta fetalis pada penderita pre-eklampsia,
(3) tidak berpengaruh terhadap aktivitas enzim Na*-K* ATPase membran sel sinsitiotrofoblas plasenta fetalis pada penderita pre-eklampsia."
Lengkap +
Depok: Universitas Indonesia, 2005
D750
UI - Disertasi Membership  Universitas Indonesia Library
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Fanny Septiani Farhan
"Latar belakang: Paparan hipoksia subletal (Hypoxia conditioning) diyakini memiliki efek neuroprotektif yang dapat meningkatkan resistensi sel dengan cara menginduksi perubahan ekspresi gen dan jalur sinyal intraseluler yang mengakibatkan adaptasi intraseluler melalui proses eritropoiesis, angiogenesis, transport glukosa dan glikolisis anaerobik melalui aktivitas gen HIF- 1 alpha. Penelitian mengenai hipoksia hipobarik intermiten (HHI) telah membuktikan bahwa induksi HHI menurunkan kerusakan jaringan otak pada korteks, dan meningkatkan densitas mikrovaskuler. HHI juga memicu respons neuroplastisitas pada sel otak sebagai upaya agar fungsi sel otak tidak terganggu.
Tujuan: Menganalisis efek hipoksia hipobarik intermitten (HHI) terhadap neuroplastisitas jaringan otak dengan mengamati perubahan fungsi motorik dan kognitif serta peningkatan protein PSD95 sebagai respons adaptasi pasca induksi hipoksia hipobarik intermitten.
Metode: 25 tikus Sprague-Dawley, dibagi menjadi 4 kelompok diinduksi HHI dan 1 kelompok sebagai kelompok kontrol.Induksi dilakukan dengan hypobaric chamber di Lakespra TNI AU dengan interval induksi 1 minggu selama 4 kali (hari-1, 8, 15 dan 22). Setelah induksi, kelompok itu diuji untuk parameter fisiologis menggunakan balok berjalan untuk mengukur fungsi motorik dan Y Maze untuk mengukur fungsi kognitif. Jaringan otak diambil untuk pemeriksaan reseptor neurotransmitter glutamat dan GABA serta protein PSD95.
Hasil: kelompok perlakuan dengan 1,2,3,4 kali paparan hipoksia hypobarik tidak menunjukkan perbedaan yang signifikan dalam fungsi neuromotor kompleks, fungsi kognitif dan PSD 95 dibandingkan dengan kelompok kontrol (p> 0,05). Ekspresi reseptor GABA dan glutamat menurun secara signifikan di induksi pertama, namun meningkat secara signifikan pada kelompok induksi kedua dan ketiga dan untuk akhirnya menurun mendekati rerata kelompok kontrol.
Kesimpulan: HHI menginduksi proses neuroplastisitas sebagai respon adaptasi terhadap paparan hipoksia hipobarik intermiten pada tikus Sprague-Dawley.

Background: Sublethal exposure to hypoxia known as hypoxia preconditioning is believed to have neuroprotective effect. Hypoxia preconditioning induces changes in gene expression and intracellular signaling pathways that lead to the emergence of intracellular adaptation through the process of erythropoiesis, angiogenesis, glucose transport and anaerobic glycolysis through HIF- 1 alpha gene activity. Intermittent hypobaric hypoxic conditions (IHH) which occurs at high altitude such as during flight, is a common condition that causes exposure to hypoxia preconditioning. HHI induction decreased brain cortical tissue damage, and increased microvascular density. The aim of the present study is to investigate the effect of hypoxic preconditioning on the function of neuronal cells.
Aims: to investigate the neuroplasticity responses after intermittent hypobaric hypoxia induction on cerebral function (complex neuromotor function,cognitive function, PSD95 and neurotransmitter transduction).
Method: A total of 25 Sprague-Dawley rats were divided into 4 groups of IHH and 1 group as control. The 4 IHH groups were exposed to intermittent hypobaric hypoxia in Indonesian Air Force Institute of Aviation Medicine hypobaric chamber, by 1 week interval for 4 times (day-1, 8, 15 and 22). After the induction, the groups were evaluated for physiological parameters using walking beam to measure the complex neuromotor function and Y maze to measure the cognitive function. The brain was taken for immunochemistry and ELISA analysis.
Results: the group treated with 1,2,3,4 times exposure to hypobaric hypoxia shows no significant differences in complex neuromotor function,cognitive function and PSD95 compare to control group ( p>0.05). The level of GABA and glutamate receptor decreased significantly in induction 1, but raised significantly in group induction 2 and 3 compare to control group.
Conclution: IHH induced neuroplasticity as adaptation respons to hypobaric intermittent hypoxia in Sprague-Dawley rats.
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Lengkap +
Jakarta: Fakultas Kedokteran Universitas Indonesia, 2016
D-Pdf
UI - Disertasi Membership  Universitas Indonesia Library
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Yosephin Sri Sutanti
"Latar belakang : Perawat memiliki tingkat stres cukup tinggi terpajan risiko psikososial, termasuk bekerja dengan jadwal kerja shift. Selama ini deteksi kasus stres berdasarkan kuesioner yang validitas dan relibialitasnya cukup baik, seperti antara lain kuesioner PSS. Penelitian bertujuan menguji markah biologi sebagai penanda stres pada perawat shift.
Metode : Penelitian dilakukan Desember 2019 sampai Juni 2020, pada perawat shift dan non-shift, masing-masing 40 orang, dari RSCM, dengan mengambil data secara consecutive sampling. Pemeriksaan kortisol, melatonin dan CRF masing-masing dua kali, yaitu pada kelompok shift sebelum bekerja (=pre) pada pukul 24.00 pada hari jaga terakhir (malam kedua), kemudian pasca bekerja (=post) pukul 08.00 keesokannya. Pada non-shift pada hari kerja pukul 08.00 (=pre) dan 16.00 (=post). Pengukuran HRV dilakukan dua kali dan Q-EEG satu kali pada saat lepas jaga (untuk shift) dan saat bekerja (untuk non-shift).
Hasil : Perawat usia reproduktif yang bekerja shift dan memiliki tingkat stres sedang-berat lebih banyak jumlahnya daripada jumlah perawat yang bekerja non-shift dan memiliki tingkat stres-berat sedang (30% vs 25%). Terdapat perbedaan bermakna rerata kadar kortisol shift=87,9±79,1 ng/ml dan non-shift=128,8±51,4 ng/ml pra kerja (p<0,001), rerata kadar kortisol shift=139,8±77,7 ng/ml dan non-shift=86,4±51,8 ng/ml pasca kerja (p= 0,001); rerata kadar melatonin shift=51,5±41,2 ng/ml dan non-shift=17,1±20,5 ng/ml pra kerja (p<0,001), serta rerata kadar melatonin shift=24,3±21,2 ng/ml dan non-shift=10,8±7,8 ng/ml pasca kerja (p<0,001). Terdapat rerata kadar melatonin=10,8±7,8 pg/ml (2,15-38,30) pukul 16.00 dan rerata kadar melatonin=51,5±41,2 pg/ml (0,8-135) pukul 24.00. Rerata kadar CRF=19,8±4,9 pg/ml (10,20-36,06) pukul 08.00, rerata kadar CRF=17,8±5,3 pg/ml (8,08-32,20) pukul 16.00 dan rerata kadar CRF=18,0±6,8 pg/ml (7,69-30,59) pukul 24.00. Komponen HRV SDNN cenderung shift=38,1±11,6 ms > non-shift=34,2± 10,7 ms; RMSSD cenderung shift=31,4±11,9 ms > non-shift=28,7±12,6 ms, dan rasio LF/HF cenderung shift=1,2±1,6 < non-shift=1,8±1,3. Q-EEG non-shift kecenderungan peningkatan menonjol di sekitar 10Hz area gelombang Alpha (8-13Hz), yang menunjukkan kondisi dewasa normal terjaga dan tenang; non-shift kecenderungan peningkatan pada area gelombang Beta (14-30Hz) dan Gama (> 30Hz). Uji multivariat Mantel-Haenszel peran bermakna markah biologi (kortisol, CRF, melatonin) terhadap skor PSS secara parsial maupun secara simultan; didapat dari kategori perubahan ketiga markah biologi terhadap stres berdasarkan kategori skor PSS.
Simpulan: Perawat shift berpeluang mengalami stres sedang-berat dibandingkan perawat non-shift. Rerata kadar kortisol dan melatonin lebih tinggi pasca dibandingkan pre kerja.Gelombang Beta dan Gama cenderung lebih tinggi pada shift dibandingkan non-shift dan berpotensi sebagai predictor stres akibat kerja shift. Kortisol, CRF dan melatonin secara bersama-sama dapat digunakan sebagai markah biologi stres berdasarkan perubahan dari waktu ke waktu

Background: A nurse has a high enough stress level because it is directly related to psychosocial hazards on shift work schedules. The Indonesian National Nurses Association stated that the prevalence of stress for nurses reached 50.9%. So far, the detection of stress cases is based on a questionnaire whose validity and relativity are quite good, such as the Perceived Stress Score (PSS) questionnaire. This study aimed to examine biological markers of stress among shift nurses.
Method: The study was conducted at the FKUI Integrated Laboratory, “Laboratorium Kesehatan Daerah DKI”, RSCM Intermediate Polyclinic, RSCM Neurology Clinic and Medical Technology IMERI, from December 2019 to March 2020. Respondents came from the shift and non-shift nurses from RSCM, chosen by consecutive sampling. The study involved 40 people individuals in each group. Cortisol, melatonin and CRF were measured twice each, in the shift workgroup (=pre) at 12.00 am on the last watch day (second night), then during post-work, (= post,) at 08.00 am the following day. In the non-shift group blood samples were taken on weekdays at 08.00 am (= pre) and 04.00 pm (=post). HRV measurements were taken twice and Q-EEG once during off-duty (for shift workers) and at work (for non-shift workers).
Results: The percentage of nurses who showed moderate stress levels in the shift group (30%) is higher compared to the non-shift group (25%). There were significant differences between the mean of shift group cortisol=87,9±79,1 ng/ml and non-shift group cortisol=128,8±51,4 ng/ml in pre-work (p< 0,001), the mean of shift group cortisol=139,8±77,7 ng/ml and non-shift group cortisol=86,4±51,8 ng/ml in post-work (p=0.001), the mean of shift group melatonin=51,5±41,2 ng/ml and non shift group melatonin=17,1±20,5 ng/ml (p<0.001) in the pre-work, and the mean of shift group melatonin=24,3±21,2 ng/ml and non-shift group melatonin=10,8±7,8 ng/ml in post-work (p<0.001). Melatonin levels mean=10.8±7,8 pg / ml (2.15-38.30) at 04.00 pm and 51.5±41,2 pg / ml (0.8-135) at 12.00 pm. CRF levels mean =19,8±4,9 pg / ml (10,2-36,1) at 08.00 am, 17.8±5,3 pg/ml (8,08-32.20) at 04.00 pm and 18.0±6,8 pg /ml (7.69-30.59) at 12.00 pm. In the HRV component, SDNN mean were higher in the shift group=38,1±11,6 ms than non-shift group=34,2±10,7 ms, higher RMSSD mean on shift group=31,4± 11,9 ms than non-shift group=28,7±12,6 ms, and LF/HF ratio mean on shift group=1,2± 1,6 compared to non-shift group=1,8±1,3. The brain wave image found a tendency of quite prominent increase around 10 Hz in the non-shift group, namely the frequency area Alpha waves (8-13 Hz), which indicate a normal adult state of wakefulness and calm. Brain waves in the shift group tended to increase in the Beta (14-30 Hz) and Gamma (> 30 Hz) wave areas. With the Mantel-Haenszel multivariate test, there is a significant role of biological markers (cortisol, CRF, melatonin) on the PSS score partially or simultaneously. This role is obtained from the category of changes in the three biological markers to stress based on the PSS score category.
Conclusion: Nurses working shift are more likely to experience moderate-severe stress than non-shift nurses. The mean levels of cortisol are higher and melatonin is also higher after work than before work. Beta and Gama waves tend to be higher in the shift group than in non-shift groups, potentially as predictors of stress due to shift work. Cortisol, CRF and melatonin can be used together as biological markers of stress based on changes over time.
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Jakarta: Fakultas Kedokteran Universitas Indonesia, 2021
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Ninik Mudjihartini
"[ABSTRAK
Hipoksia berperan penting pada patofisiologi berbagai penyakit utama penyebab kematian seperti, penyakit jantung iskemia, strok, kanker, penyakit paru kronik, dan gagal jantung kongestif. Kedua protein golongan globin di otak, yaitu neuroglobin (Ngb) dan sitoglobin (Cygb) diduga berperan dalam suplai oksigen ke mitokondria dan melindungi jaringan otak dari kerusakan akibat hipoksia (neuroprotektan). Perubahan ekspresi protein merupakan salah satu bentuk adaptasi biokimia yang penting terhadap perubahan homeostasis. Oleh karena itu timbul pertanyaan bagaimana pola ekspresi Ngb dan Cygb serta peran neuroprotektan kedua protein tersebut di otak pada keadaan hipoksia sistemik kronik (HSK). Penelitian bertujuan manganalisis perbedaan pola ekspresi Ngb dan Cygb serta kaitannya dengan apoptosis pada HSK. Parameter yang diukur adalah Ngb, Cygb, sitokrom c, MDA, GSH dan HIF-lα. Rancangan penelitian yang digunakan adalah studi eksperimental in vivo model HSK pada tikus. Tikus sebagai hewan coba dibagi secara acak dalam 6 kelompok perlakuan, yaitu kelompok I adalah kelompok kontrol atau tanpa perlakuan hipoksia, sedangkan kelompok II, III, IV, V, dan VI mendapat perlakuan hipoksia dengan lama waktu hipoksia selama 1, 3, 5, 7, dan 14 hari. Parameter yang diperiksa meliputi ekspresi Ngb dan Cygb dengan teknik real time-RT PCR, ELISA dan imunofluoresen FITC, stres oksidatif, HIF-1α sebagai penanda hipoksia, dan sitokrom c sebagai penanda apoptosis. Hasil yang diperoleh HSK meningkatkan ekspresi mRNA Ngb pada hipoksia 3, 5, dan 7 hari, namun ekspresi proteinnya menurun pada hipoksia 1, 3, 5, 7, dan 14 hari dibanding dengan kontrol. Berbeda dengan ekspresi mRNA Cygb yang menurun selama hipoksia 1, 3, 5, 7, dan 14 hari, namun protein Cygb meningkat pada hipoksia 1, 3, 5, 7, dan 14 hari dibandingkan dengan kontrol. Korelasi Ngb dengan sitokrom c lemah tidak signifikan, sedangkan Cygb sangat lemah dan tidak signifikan. HSK menginduksi ekspresi HIF-lα yang meningkat tertinggi pada hipoksia 7 hari, dan menyebabkan stres oksidatif yang ditandai dengan meningkatnya MDA pada hipoksia 1, 3 dan 5 hari, serta menurunnya GSH pada hipoksia 1, 3, dan 5 hari. Penelitian ini membuktikan bahwa terdapat perbedaan pola ekspresi Ngb dan Cygb pada HSK. Ekspresi Ngb sebagai respons adaptasi terjadi lebih awal dan lebih dipengaruhi oleh lama waktu hipoksia dibandingkan dengan ekspresi Cygb. Meskipun lemah, Ngb cenderung mempunyai peran menghambat apoptosis dibandingkan dengan protein Cygb.;

ABSTRACT
Hypoxia has an important role in the pathophysiology of high mortality diseases, such as ischemic cardiovascular disease, stroke, cancer, chronic lung disease, and congestive heart failure. The proteins belonged to globin protein group, included neuroglobin (Ngb) and cytoglobin (Cygb), have been presumed to play a role in regulating the oxygen supply into the mitochondria and protecting the brain tissues from damage due to hypoxia (neuroprotectant). An alteration in protein expression due to a homeostatic shift is an important adaptation process in biochemistry. Therefore, the expression pattern of Ngb and Cygb as well as their protein roles in brain during a chronic systemic hypoxia condition (CSH) remain unclear. This study aim to analyse the differences of the Ngb and Cygb expression patterns, and correlation of both protein to apoptosis in chronic systemic hypoxic condition. Ngb, Cygb, Cytochrome c, MDA, GSH, and HIF-1 α. were examined. An in vivo experimental model of CSH was carried out using rat. The experimental rats were randomly divided into 6 treatment groups, i.e. group I was a control group or without hypoxic condition, groups II, III, IV, V, and VI were treated by hypoxic condition for 1, 3, 5, 7, and 14 days, respectively. The Ngb and Cygb expressions were analysed using real time-RTPCR, ELISA, immunofluorescence with FITC, and the measurement of stress oxidative biomarkers, included HIF-1α as a biomarker of hypoxic condition and cytochrome c as a biomarker of apoptosis. The CSH was increased the mRNA expression of Ngb at 3, 5, and 7 days hypoxic groups, while the protein expression was decreased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The mRNA expression of Cygb was decreased at 1, 3, 5, 7, and 14 days hypoxic groups, whereas the Cygb protein expression was increased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The correlation between Ngb with cytochrome c was weakly statistically insignificant, and Cygb with cytochrome c was statistically insignificant. The CSH induced the HIFlα, which was shown by a high increase at 7 days hypoxic group, as well as stress oxidative which was represented by MDA at 1, 3, and 5 days hypoxic groups, and decreased GSH at 1, 3, and 5 days hypoxic groups. There are differences in expression pattern of Ngb and Cygb in CSH. The expression of Ngb, as an adaptive response, occurs earlier and is more influenced by the duration of hypoxic condition compared to Cygb. Although the correlation is weak, the Ngb seems more likely to inhibit apoptosis compared to Cygb protein;Hypoxia has an important role in the pathophysiology of high mortality diseases, such as ischemic cardiovascular disease, stroke, cancer, chronic lung disease, and congestive heart failure. The proteins belonged to globin protein group, included neuroglobin (Ngb) and cytoglobin (Cygb), have been presumed to play a role in regulating the oxygen supply into the mitochondria and protecting the brain tissues from damage due to hypoxia (neuroprotectant). An alteration in protein expression due to a homeostatic shift is an important adaptation process in biochemistry. Therefore, the expression pattern of Ngb and Cygb as well as their protein roles in brain during a chronic systemic hypoxia condition (CSH) remain unclear. This study aim to analyse the differences of the Ngb and Cygb expression patterns, and correlation of both protein to apoptosis in chronic systemic hypoxic condition. Ngb, Cygb, Cytochrome c, MDA, GSH, and HIF-1 α. were examined. An in vivo experimental model of CSH was carried out using rat. The experimental rats were randomly divided into 6 treatment groups, i.e. group I was a control group or without hypoxic condition, groups II, III, IV, V, and VI were treated by hypoxic condition for 1, 3, 5, 7, and 14 days, respectively. The Ngb and Cygb expressions were analysed using real time-RTPCR, ELISA, immunofluorescence with FITC, and the measurement of stress oxidative biomarkers, included HIF-1α as a biomarker of hypoxic condition and cytochrome c as a biomarker of apoptosis. The CSH was increased the mRNA expression of Ngb at 3, 5, and 7 days hypoxic groups, while the protein expression was decreased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The mRNA expression of Cygb was decreased at 1, 3, 5, 7, and 14 days hypoxic groups, whereas the Cygb protein expression was increased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The correlation between Ngb with cytochrome c was weakly statistically insignificant, and Cygb with cytochrome c was statistically insignificant. The CSH induced the HIFlα, which was shown by a high increase at 7 days hypoxic group, as well as stress oxidative which was represented by MDA at 1, 3, and 5 days hypoxic groups, and decreased GSH at 1, 3, and 5 days hypoxic groups. There are differences in expression pattern of Ngb and Cygb in CSH. The expression of Ngb, as an adaptive response, occurs earlier and is more influenced by the duration of hypoxic condition compared to Cygb. Although the correlation is weak, the Ngb seems more likely to inhibit apoptosis compared to Cygb protein;Hypoxia has an important role in the pathophysiology of high mortality diseases, such as ischemic cardiovascular disease, stroke, cancer, chronic lung disease, and congestive heart failure. The proteins belonged to globin protein group, included neuroglobin (Ngb) and cytoglobin (Cygb), have been presumed to play a role in regulating the oxygen supply into the mitochondria and protecting the brain tissues from damage due to hypoxia (neuroprotectant). An alteration in protein expression due to a homeostatic shift is an important adaptation process in biochemistry. Therefore, the expression pattern of Ngb and Cygb as well as their protein roles in brain during a chronic systemic hypoxia condition (CSH) remain unclear. This study aim to analyse the differences of the Ngb and Cygb expression patterns, and correlation of both protein to apoptosis in chronic systemic hypoxic condition. Ngb, Cygb, Cytochrome c, MDA, GSH, and HIF-1 α. were examined. An in vivo experimental model of CSH was carried out using rat. The experimental rats were randomly divided into 6 treatment groups, i.e. group I was a control group or without hypoxic condition, groups II, III, IV, V, and VI were treated by hypoxic condition for 1, 3, 5, 7, and 14 days, respectively. The Ngb and Cygb expressions were analysed using real time-RTPCR, ELISA, immunofluorescence with FITC, and the measurement of stress oxidative biomarkers, included HIF-1α as a biomarker of hypoxic condition and cytochrome c as a biomarker of apoptosis. The CSH was increased the mRNA expression of Ngb at 3, 5, and 7 days hypoxic groups, while the protein expression was decreased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The mRNA expression of Cygb was decreased at 1, 3, 5, 7, and 14 days hypoxic groups, whereas the Cygb protein expression was increased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The correlation between Ngb with cytochrome c was weakly statistically insignificant, and Cygb with cytochrome c was statistically insignificant. The CSH induced the HIFlα, which was shown by a high increase at 7 days hypoxic group, as well as stress oxidative which was represented by MDA at 1, 3, and 5 days hypoxic groups, and decreased GSH at 1, 3, and 5 days hypoxic groups. There are differences in expression pattern of Ngb and Cygb in CSH. The expression of Ngb, as an adaptive response, occurs earlier and is more influenced by the duration of hypoxic condition compared to Cygb. Although the correlation is weak, the Ngb seems more likely to inhibit apoptosis compared to Cygb protein;Hypoxia has an important role in the pathophysiology of high mortality diseases, such as ischemic cardiovascular disease, stroke, cancer, chronic lung disease, and congestive heart failure. The proteins belonged to globin protein group, included neuroglobin (Ngb) and cytoglobin (Cygb), have been presumed to play a role in regulating the oxygen supply into the mitochondria and protecting the brain tissues from damage due to hypoxia (neuroprotectant). An alteration in protein expression due to a homeostatic shift is an important adaptation process in biochemistry. Therefore, the expression pattern of Ngb and Cygb as well as their protein roles in brain during a chronic systemic hypoxia condition (CSH) remain unclear. This study aim to analyse the differences of the Ngb and Cygb expression patterns, and correlation of both protein to apoptosis in chronic systemic hypoxic condition. Ngb, Cygb, Cytochrome c, MDA, GSH, and HIF-1 α. were examined. An in vivo experimental model of CSH was carried out using rat. The experimental rats were randomly divided into 6 treatment groups, i.e. group I was a control group or without hypoxic condition, groups II, III, IV, V, and VI were treated by hypoxic condition for 1, 3, 5, 7, and 14 days, respectively. The Ngb and Cygb expressions were analysed using real time-RTPCR, ELISA, immunofluorescence with FITC, and the measurement of stress oxidative biomarkers, included HIF-1α as a biomarker of hypoxic condition and cytochrome c as a biomarker of apoptosis. The CSH was increased the mRNA expression of Ngb at 3, 5, and 7 days hypoxic groups, while the protein expression was decreased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The mRNA expression of Cygb was decreased at 1, 3, 5, 7, and 14 days hypoxic groups, whereas the Cygb protein expression was increased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The correlation between Ngb with cytochrome c was weakly statistically insignificant, and Cygb with cytochrome c was statistically insignificant. The CSH induced the HIFlα, which was shown by a high increase at 7 days hypoxic group, as well as stress oxidative which was represented by MDA at 1, 3, and 5 days hypoxic groups, and decreased GSH at 1, 3, and 5 days hypoxic groups. There are differences in expression pattern of Ngb and Cygb in CSH. The expression of Ngb, as an adaptive response, occurs earlier and is more influenced by the duration of hypoxic condition compared to Cygb. Although the correlation is weak, the Ngb seems more likely to inhibit apoptosis compared to Cygb protein, Hypoxia has an important role in the pathophysiology of high mortality diseases, such as ischemic cardiovascular disease, stroke, cancer, chronic lung disease, and congestive heart failure. The proteins belonged to globin protein group, included neuroglobin (Ngb) and cytoglobin (Cygb), have been presumed to play a role in regulating the oxygen supply into the mitochondria and protecting the brain tissues from damage due to hypoxia (neuroprotectant). An alteration in protein expression due to a homeostatic shift is an important adaptation process in biochemistry. Therefore, the expression pattern of Ngb and Cygb as well as their protein roles in brain during a chronic systemic hypoxia condition (CSH) remain unclear. This study aim to analyse the differences of the Ngb and Cygb expression patterns, and correlation of both protein to apoptosis in chronic systemic hypoxic condition. Ngb, Cygb, Cytochrome c, MDA, GSH, and HIF-1 α. were examined. An in vivo experimental model of CSH was carried out using rat. The experimental rats were randomly divided into 6 treatment groups, i.e. group I was a control group or without hypoxic condition, groups II, III, IV, V, and VI were treated by hypoxic condition for 1, 3, 5, 7, and 14 days, respectively. The Ngb and Cygb expressions were analysed using real time-RTPCR, ELISA, immunofluorescence with FITC, and the measurement of stress oxidative biomarkers, included HIF-1α as a biomarker of hypoxic condition and cytochrome c as a biomarker of apoptosis. The CSH was increased the mRNA expression of Ngb at 3, 5, and 7 days hypoxic groups, while the protein expression was decreased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The mRNA expression of Cygb was decreased at 1, 3, 5, 7, and 14 days hypoxic groups, whereas the Cygb protein expression was increased at 1, 3, 5, 7, and 14 days hypoxic groups compared to control group. The correlation between Ngb with cytochrome c was weakly statistically insignificant, and Cygb with cytochrome c was statistically insignificant. The CSH induced the HIFlα, which was shown by a high increase at 7 days hypoxic group, as well as stress oxidative which was represented by MDA at 1, 3, and 5 days hypoxic groups, and decreased GSH at 1, 3, and 5 days hypoxic groups. There are differences in expression pattern of Ngb and Cygb in CSH. The expression of Ngb, as an adaptive response, occurs earlier and is more influenced by the duration of hypoxic condition compared to Cygb. Although the correlation is weak, the Ngb seems more likely to inhibit apoptosis compared to Cygb protein]"
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2015
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UI - Disertasi Membership  Universitas Indonesia Library
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