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Ditemukan 21083 dokumen yang sesuai dengan query
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"The text encompasses the basic science of reactive oxygen species (ROS) production by mammalian spermatozoa, the way in which these highly reactive molecules are processed by the germ line and the physiological significance of this redox activity in the generation of a functional gamete. The factors responsible for perturbing the delicate balance between physiological redox signaling on the one hand and oxidative stress on the other are also extensively reviewed and some of the first clues concerning the underlying mechanisms (age, heat, infection, cryostorage, aberrant lipid metabolism), clearly identified. From a clinical perspective there are chapters setting out the methods we should be using to diagnose oxidative stress in the male germ line, a clinical perspective on the aetiology of this condition and detailed considerations of the most suitable means of ameliorating such stress from a therapeutic point of view. "
New York: Springer, 2012
e20401823
eBooks  Universitas Indonesia Library
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Jakarta: Departemen Biokimia dan Biologi Molekuler, Fakultas Kedokteran Universitas Indonesia, 2016
610 UND
Buku Teks SO  Universitas Indonesia Library
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Hawthorn, Geoffrey
London: Collier MacMillan, 1970
301.42 HAW s
Buku Teks SO  Universitas Indonesia Library
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Lexington, MA: LexingtonBooks, 1981
304.63 PRE
Buku Teks  Universitas Indonesia Library
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Andini Rahmawati
"Pendahuluan. Penyakit degeneratif dan non-communicable diseases adalah penyebab kematian tersering di Indonesia disebabkan oleh Reactive Oxygen Species (ROS) yang menyebabkan keadaan stress oksidatif berdampak pada kerusakan sel sehat, kelainan fungsi, dan berakhir dengan penyakit. Dikarenakan tingkat antioksidan endogen tidak cukup untuk mengkompensasi stres oksidatif, maka Cinnamomum burmannii dibutuhkan sebagai antioksidan eksogen.
Metode. Untuk menilai isi kandungan antioksidan dalam Cinnamomum burmannii, analisis fitokimia dilakukan menggunaka ekstrak ethanol, ethyl asetate, dan hexane dari kulit batang Cinnamomum burmannii. Pada pengujian In Vitro, DPPH (2,2- diphenyl-1-picrylhydrazyl) digunakan sebagai radikal bebas buatan untuk mengevaluasi aktivitas antioksidan, ditunjukkan dengan nilai IC50. Sedangkan, pengujian In Vivo membandingkan nilai Malondialdehide (MDA) dari lima grup tikus Sprague Dawley (SD) sebelum dan sesudah diberikan ektrak ethanol dengan dosis berbeda (5 mg/200 gr BB, 10 mg/200 gr BB, and 20 mg/200 gr BB), vitamin C (kontrol positif), dan air (kontrol negatif). Aktivitas berenang diberikan 10 menit sebelum dan sesudah pengecekkan nilai MDA ditujukan untuk menghasilkan kondisi stres oksidatif pada tikus SD.
Hasil. Analisis fitokimia terhadap ekstrak ethanol dari Cinnamomum burmannii menunjukkan kandungan antioksidan yang terdiri dari saponin, flavonoid, alkaloid, steroid, essential oil, dan tannin. Uji In Vitro menunjukkan ekstrak ethanol dari Cinnamomum burmannii memiliki aktivitas antioksidan kuat dengan nilai IC50, yaitu 20.65 ug/mL. Sedangkan pada uji In Vivo, dosis yang paling efektif adalah 10 mg/200 gr BB, ditunjukkan dengan penurunan kadar MDA yang signifikan (0.312 nmol/ mL) setelah perlakuan.
Kesimpulan. Penelitian ini membuktikan bahwa ekstrak ethanol dari Cinnamomum burmannii menunjukkan aktivitas antioksidan melalui uji In Vitro dan In Vivo.

Introduction. Degenerative disease and non-communicable diseases are the most prevalent cause of death in Indonesia due to Reactive Oxygen Species (ROS) which give result in oxidative stress causing damaged healthy cells and malfunction resulting a disease. Since the level of endogenous antioxidant may not sufficient to compensate the oxidative stress, thus Cinnamomum burmannii is needed as an exogenous antioxidant.
Methods. In order to assess the antioxidant content of Cinnamomum burmannii, phytochemical analysis was conducted using ethanol, ethyl acetate, and hexane extract of Cinnamomum burmannii stem bark. In In Vitro test, DPPH (2,2-diphenyl-1-picrylhydrazyl) was used as an artificial free radical to evaluate the antioxidant activity, represented by IC50 value. While, In Vivo test compared Malondialdehyde (MDA) level of five groups of Sprague Dawley (SD) rats before and after given the ethanol extract with three different doses (5 mg/200 gr BW, 10 mg/200 gr BW, and 20 mg/200 gr BW), vitamin C (positive control), and water (negative control). Swimming for 10 minutes was given prior to the MDA level test in order to exert the oxidative stress condition in the SD rats.
Results. Phytochemical analysis result showed antioxidant content of ethanol extract of Cinnamomum burmannii comprises of saponin, flavonoid, alkaloid, steroid, essential oil, and tannin. In Vitro test showed that ethanol extract of Cinnamomum burmannii has strong antioxidant activity with IC50 value of 20.65 ug/mL. While in the In Vivo test, the most effective dosage is 10 mg/200 gr BW, represented by a significant decrease of MDA level (0.312 nmol/ mL) before and after treatment.
Conclusion. It is clearly evident from the study that ethanol extract of Cinnamomum burmannii stem bark demonstrated antioxidant activity through both, In Vitro test and In Vivo test.
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Depok: Fakultas Kedokteran Universitas Indonesia , 2018
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UI - Skripsi Membership  Universitas Indonesia Library
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Henry, Louis
Amsterdam: Elsevier, 1972
301.321 HEN m
Buku Teks SO  Universitas Indonesia Library
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Stycos, J. Mayone
New York: Cornell University Press, 1968
301 STY h
Buku Teks SO  Universitas Indonesia Library
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McFalls, Joseph A.
Orlando : Academic Press, 1984
616.69 MCF d
Buku Teks SO  Universitas Indonesia Library
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"In this book, the editors provide strategies for fertility preservation in women and men who require gonadotoxic treatment. In addition, epidemiologic, ethical, medico-legal, psychologic, and social aspects of fertility preservation are discussed. Using a format that combines concise scientific background with practical methodological information and easy-to-grasp algorithms, the chapters all conform to a uniform structure, including a brief abstract, keyword glossary, step by step protocol of laboratory procedures, key issues in commentary and a list of references. The result is a unique, practical reference guide for reproductive endocrinologists, urologists, embryologists, reproductive scientists, and oncologists."
New York: Springer, 2012
e20426137
eBooks  Universitas Indonesia Library
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Supraja Dwiyono
"[ABSTRAK
Doksorubisin merupakan salah satu antikanker golongan antrasiklin yang efektif,
untuk keganasan di darah. Akan tetapi, seperti antikanker konvensional pada
umumnya, penggunaan doksorubisin dapat menyebabkan berbagai efek samping pada
organ lain, misalnya pada testis sehingga penggunaannya di klinis menjadi terbatas.
Hal ini disebabkan karena mekanisme antikanker doksorubisin dapat juga
menimbulkan toksisitas pada testis. Peningkatan stress oksidatif adalah salah satu
mekanisme dapat menyebabkan kerusakan pada organ tersebut. Mangiferin sebagai
zat antioksidan alami, terkandung dalam Mangifera Indica L. diperkirakan dapat
digunakan untuk mengurangi toksisitas testis. Namun sampai saat ini, belum ada
penelitian yang mengeksplor efek proteksi mangiferin terhadap kerusakan oksidatif
testis yang diinduksi doksorubisin.
Penelitian ini menggunakan tikus jantan Sprague Dawley, yang dibagi menjadi empat
kelompok. Masing-masing kelompok terdiri dari enam ekor tikus. Tikus pada
kelompok kontrol negatif diberikan doksorubisin secara intraperitoneal (dosis total 15
mg/kgBB) dan kelompok normal diberikan NaCl 0,9%. Mangiferin (dosis 30 dan 60
mg/kg BB) diberikan oral selama tujuh minggu. Setelah, tujuh minggu tikus
dimatikan dan testis dikumpulkan untuk analisis parameter stress oksidatif biokimia
kadar MDA (malonedyaldehide), aktivitas SOD (Superoxide Dysmutase), perubahan
histologi dan apoptosis kaspase-9 dan kaspase-12. Hasil penelitian menunjukkan
bahwa pemberian doksorubisin selama dua minggu dapat meningkatkan kadar MDA,
menyebabkan kerusakan sel spermatogenik, sel Sertoli dan penciutan diameter
tubulus seminiferus testis, peningkatan ekspresi kaspase-9 di sisi luminal yang
diberikan doksorubisin. Pemberian mangiferin dosis 30 dan 60 mg/kg BB selama
tujuh minggu dapat mengurangi kerusakan sel spermatogenik dan sel Sertoli tubulus
seminiferus testis, penurunan kadar MDA dan penurunan ekspresi kaspase-9 pada
kelompok perlakuan diberikan doksorubisin dan mangiferin. Perbaikan parameterparameter
ini mengindikasikan bahwa mangiferin mempunyai efek proteksi terhadap
kerusakan sel spematogenik dan sel sertoli tubulus seminiferus testis tikus yang
diberikan doksorubisin.

ABSTRACT
Doxorubicin, one of the anthracycline anticancer class, is effective especially in blood
malignancy. However, as in the general use of the conventional anticancer-drugs.
Doxorubicin can cause various side effects in other organs, such as the testes so that
its use in clinical become limited. This is because of the anticancer mechanism can
cause cytotoxicity on testes. The increased oxidative stress is the main mechanism
that can be the causal. Mangiferin as a natural antioxidant substance, contained in
Mangifera Indica L., is expected to reduce the toxicity. The Antioxidants are
expected to reduce the toxicity of the testes. But until now, no studies have explored
the effects of mangiferin protection against oxidative damage induced testicular
doxorubicin.
This study used male Sprague Dawley rats, which were divided into four groups.
Each group consisted of six mice. Rats in the negative control group was given
intraperitoneal doxorubicin (total dose 15 mg/kg) and the normal group was given
normal saline 0.9%. Mangiferin (doses of 30 and 60 mg/kg) was administered orally
for seven weeks to the treatment gtoups (both DOX and MAG were given). After
seven weeks-off, testes of mice were collected for analysis of biochemical parameters
i.e. oxidative stress levels of MDA and SOD activity, histology and apoptosis of the
caspase-9 and of the caspase-12. The results showed that administration of
doxorubicin for two-weeks can cause damage to Sertoli, spermatogenic cells and
shrinking of diameter of testicular seminiferous tubules, increasing the levels of
MDA, increasing in the expression of caspase-9 on the luminal side in the treatment
group was given doxorubicin. This possibility of the doxorubicin dose given is too
toxic to the testes in this study. Mangiferin dose administration of 30 and 60 mg / kg
for seven-weeks can reduce the damage of Sertoli and spermatogenic cells of the
testicular seminiferous tubules, decrease levels of MDA, reduce Sertoli,
spermatogenic cell and diameter of the testicular seminiferous tubulus damage,
decrease caspase-9 expression only on luminal side of the seminiferus tubulus in the
groups given both of doxorubicin and mangiferin. these parameters indicate that
mangiferin, which has antioxidant?s activity, provides protective effects against
oxidative damage in spematogenic and Sertoli cell testicular seminiferous tubules of
mice given doxorubicin, Doxorubicin, one of the anthracycline anticancer class, is effective especially in blood
malignancy. However, as in the general use of the conventional anticancer-drugs.
Doxorubicin can cause various side effects in other organs, such as the testes so that
its use in clinical become limited. This is because of the anticancer mechanism can
cause cytotoxicity on testes. The increased oxidative stress is the main mechanism
that can be the causal. Mangiferin as a natural antioxidant substance, contained in
Mangifera Indica L., is expected to reduce the toxicity. The Antioxidants are
expected to reduce the toxicity of the testes. But until now, no studies have explored
the effects of mangiferin protection against oxidative damage induced testicular
doxorubicin.
This study used male Sprague Dawley rats, which were divided into four groups.
Each group consisted of six mice. Rats in the negative control group was given
intraperitoneal doxorubicin (total dose 15 mg/kg) and the normal group was given
normal saline 0.9%. Mangiferin (doses of 30 and 60 mg/kg) was administered orally
for seven weeks to the treatment gtoups (both DOX and MAG were given). After
seven weeks-off, testes of mice were collected for analysis of biochemical parameters
i.e. oxidative stress levels of MDA and SOD activity, histology and apoptosis of the
caspase-9 and of the caspase-12. The results showed that administration of
doxorubicin for two-weeks can cause damage to Sertoli, spermatogenic cells and
shrinking of diameter of testicular seminiferous tubules, increasing the levels of
MDA, increasing in the expression of caspase-9 on the luminal side in the treatment
group was given doxorubicin. This possibility of the doxorubicin dose given is too
toxic to the testes in this study. Mangiferin dose administration of 30 and 60 mg / kg
for seven-weeks can reduce the damage of Sertoli and spermatogenic cells of the
testicular seminiferous tubules, decrease levels of MDA, reduce Sertoli,
spermatogenic cell and diameter of the testicular seminiferous tubulus damage,
decrease caspase-9 expression only on luminal side of the seminiferus tubulus in the
groups given both of doxorubicin and mangiferin. these parameters indicate that
mangiferin, which has antioxidant’s activity, provides protective effects against
oxidative damage in spematogenic and Sertoli cell testicular seminiferous tubules of
mice given doxorubicin]"
2015
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UI - Tesis Membership  Universitas Indonesia Library
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