Open Journal Systems
Not a member yet
    442 research outputs found

    The anticancer compound identification from chloroform extract of Rhizopora mucronata stem bark

    Get PDF
    Previous  reasearch  reported  that  chloroform  extract  that  was  partitioned from etanol exctracts  of  R. mucronata  stem bark had sitotoxic against Myeloma cells  (Diastuti,  2008).  This  research  was  aimed  to  fractinate  the  chloroform extract  of  R.  mucronata  stem  bark  and  cytotoxicity  test  againts  Myeloma  cells, then  identification  the  cytotoxic  compounds.  The  ethanol  extracts  of R.  mucronata  steam  bark  was  partitioned  with  chloroform.  The  chloroform extracts was fractinated by coloum chromatography with gradient eluent were nhexane, chloroform, etilacetate  and methanol respectivelly. Cytotoxicity test the fraction  of  chloroform  extracts  were  conducted  on  Myeloma  cells  by  MTT methods.  Identification   the  compoud  of  fraction  that  had  a  highest  cytotoxic againts  Myeloma  cells  conducted  using  IR  spectrometer,  and  GCMS.  The  result showed  that  2b  fraction  of   R.  mucronata  stem  bark  had  a  highest  cytotoxic againts  Myeloma  cells,  having  IC50  equal  to  5.122   µg/mL.  Identification  of chemical compounds  showed that 2b fraction  contained two steroid compounds were 4 methyl- colest-24-en-3-ol and 4-methyl-stigmast-22-en-3-ol.Key words : R. Mucronata, anticancer, Myeloma cells, steroid

    Characterization antibacterial constituent from Ficus deltoideusJack leaves

    Get PDF
    An antibacterial constituent, has been isolated from Ficus deltoideus Jack leaves. Based on spectroscopic data (IR, 1H-NMR, 13 C NMR 1D and 2D and MS), the structure of this compound was identified as Olean-12en-3β-ol, (β-amyrin), C30H50O. This compound showed antibacterial activities against E. coli, B. subtilis and S.  aureus.  The minimum inhibition concentration (MIC) agains  E.  coli,  B. subtilisand  S. aureusare 230, 380 and 460 (µg/mL) respectively.Key words: Antibacterial activity,Ficus deltoideusJack, β-amyri

    Bioaccumulation of poly-aromatic hydrocarbons in plankton, algae and fish in south sea waters in Jogjakarta

    Get PDF
    As  a  pollutant,  the  presence  of Poly  Aromatic  Hydrocarbons  (PAH)  in  the environment must be always monitored, because of their ability to spread widely through  the  food  chain  and  also  their  carsinogenic  properties.  The  solubility  of PAH  in  water  is  very  low,  therefore  it  is  difficult  to  analyze  their  presence  in water environment by using water as a sample. By utilizing the phenomenon of the  accumulation  of  PAH  in  biolipids,  the  analysis  method  has  been  developedusing  bioindicators.  In  this  research,  the  concentration  of  four  kinds  of  PAH (pyrene,  benzo(a)anthracene,  benzo(k)fluoranthene  and  perylene)  in  several samples  (water,  plankton,  algae  and  fish)  that  collected  from  the  south  sea Jogjakarta  has  been  determined. The bioaccumulation  factor  (BAF)  of  PAH  in each  sample  has  been  calculated  and  the  results  were  from  4498  to  432754; 2552  to  49265;  14156  to  730991,  respectively  for  plankton,  algae  and  fish. Based on the BAF values, plankton can be used as a bioindicator for short term PAH monitoring, while the Upeneus moluccensisfish primarily gills organ can be used as a bioindicator for medium term (months) PAH monitoring.Key  words  :  poly  aromatic  hydrocarbons,  bioaccumulation  factor,  bioindicator,  Upeneus moluccensi

    Component and antibacterial activity of crystal fraction from Zingiber zerumbetessential oil

    Get PDF
    The  aims  of  the  study  was  to  determine  of  the  crystal  fraction  from Zingiber  zerumbet essential  oils.  The  components  examination  was  performed by  GC-MS  method  using  the  solvent  n-hexane  and  anti bacterial  activity  was tested  against  Staphylococcus  aureus ATCC  25923  and  Escherichia  coli ATCC 35218  using  agar  diffusion  method  with  coconut  oil  solvent.  The  components that  can  be  identified  are  α-humulene,  caryophyllene  oxide,  β-selinene, and zerumbone. Crystal fraction solution able to inhibit of S. aureusATCC 25923 at  the  concentration  25  %  and  up  to  50  %  has  not  been  able  to  inhibit  E.  coli ATCC 35218.Key words : Zingiber zerumbet, Lempuyang gajah, Crystal fraction, anti-bacteria

    Toxicity effect of Centella asiatica Linn. extract on mice (Mus musculus) organ and tissue

    Get PDF
    Toxicity test ofCentella asiaticaLinn. water extract had been carried out. Extract  were  administered  via  oral,  single  and  daily  doses  in  mice  (Mus musculus).  The  effect  of  extract  on  organs  and  tissue  were  evaluated  by observing  the  pathology  anatomy  of  heart,  liver  and  kidney  and  alsoLD50 value. The influences of acute and sub-chronic toxicity on morpho-anatomy organs and histo-pathology tissue were in accordance with LD50experiment. The results of morpho-anatomy showed that all organs were still in normal condition at  low  dose  treatment,  but stain  and  white  spots  appeared  on  liver, black  spot on  heart  and  white  spots  on  kidney  at  higher  dose.  Histo-pathology  indicated that low dose administration of extract resulted that, all of tissue observed were in  good  and  normal  condition,  but  at  higher  dose  resulted  injure  of   muscle fibres  and  also  injure  of  nucleus  cells  of  heart  tissue  also  the  colour  of  liver tissue  was  brick  red  and  white  stain  manifestation  (because  the  damaged  of cells  and  accumulation  of  leucocytes).  Degeneration  and  congestive  sinus occurred  in  liver  tissue,  while  necrosis  and  protein  degeneration  formed  in kidney  because  of  glomerulus  membrane  damaged.  LD50 of Centella extract was  13.6  g/kg.  This  dose  indicated   that  Centella  extract   is   slightly   toxic (5 - 15 g/kg), so that it is suggested that if it was used in phyto-therapy had to be under supervision of an expert or specialist and administered in low dose and short period.Keywords : Centella  asiatica Linn;  extract;  acute  and  subchronic  toxicity;  anatomy patholog

    Purification and characterization of anti-multidrug resistances bacteria from actinomycetes associated sponge

    Get PDF
    Actinomycetes  are   one  kind  of  the  microorganisms  that  very  important producer  of   secondary  metabolites  for  drugs.Active substances  of  microbial origin  have  been  searched   through  a  series  of  screening  methos  to   obtain novel  compounds  and  strains.  The  purpose  of  this  research  was  to  characterize the  antibacterial  coumpound   from  actinomycetes  associated  sponge  and identification  of  actinomycetes  base  on  morfology  and  fisiology  characteristic. Isolation of actinomycetes from sponge were done bypour and spreap plate. A total  of   actinomycetes  strain  were  isolated  from  sponges  collected   at  Barrang Lompo  island,  Makassar,  South  Sulawesi,   Indonesia. One of  them  showed strong   activity  against  antibiotic  resistant  bacteria   with  concentration 0.0195µg.  Characterisation  of  antimicrobial  coumpound  base  on  IR  spectrum determined  derivate  of  carboxylic   acid.  The  result obtained  from  the morphological  and  physiological  characterisation,  determined  the  strain  a Streptomyces spKey words: sponges, actinomycetes, secondary metabolic, bacteria resista

    Ability of fermented soymilk byLactobacillus plantarum 1 in bile acids binding

    Get PDF
    Some  lactic  acid  bacteria  (LAB)  strains  have  been  isolated  from spontaneously  fermented  soymilk  which  showing  proteolytic  activity.  These isolated  were  expected  could  producing  bioactive  peptides  that  could  lowering cholesterol content when they used for soymilk fermentation. This research was aimed to  determine  the  proteolytic activity of Lactobacillus  plantarum  1 R.1.3.2 and  L.  plantarum  1 R.11.1.2  comparing  with  L.  acidophilus FNCC  0051  as  acontrol. Furthermore soymilk fermented with these  isolates were monitored for their ability to bind bile acid and these results were compared with the control of soymilk  with  no  fermentation.  Proteolytic  activities  (U/mL)  were  measured spectrophotometrically  using  tyrosin  as  a  standard  product,  while  bile  acid binding   capacity  (µM/100  mg  protein)  using  Total  bile  Acid  Binding  Kit.  The results  show  that  all  isolates  use  in  this  study  had  no  different  proteolytic activity nor bile acid binding capability to that of control strain. The fermentation process could increased their ability to bind with the bile acid.Key words :fermented soymilk, proteolytic lactic acid bacteria, bile acid bindin

    Drug Related Problem (DRP) of Dengue Hemorragic Fever (DHF) medication in pediatric patient`

    Get PDF
    Every year, Dengue Hemorrhagic Fever (DHF) is the big problem Indonesian’s government with high incidency and high mortality. It would increased length of stay and high cost. The objectives of this study are to identify drug-related problems in DHF patient include need for additional drug therapy, unnecessary drug therapy, wrong drug, drug interaction, dosage to high, and dosage too low.A prospective study of pediatrics admitted to Pediatric Ward, X Private Hospital Yogyakarta for DHF infections was carried out since February-April 2006. Appropriate descriptive analysis was used.The results showed that unnecessary drug therapy the most drugrelated problems in 22 patient from 65 pediatic patient.The other DRP were dosage too low in 14 patient, dosage too high in 10 patient, wrong drug in 4 patient, and need for additional drug therapy in 2 patient, rescpectively. Antibiotics were the most cause of drug-related problems in DHF patient.Key words : Dengue Hemorrhagic Fever (DHF), Drug-Related Problem (DRP), Antibiotic , Hospital

    Quality of life measurement in cancer patients before and after chemotherapy with EORTC QLQ-C30 in RSUP Dr. Sardjito Yogyakarta

    Get PDF
    The research about cancer patients’ quality of life on before and after therapy of high emetogenic cytotostatic in RSUP Dr Sardjito Yogyakarta by EORTC QLQ-C30 has been done.This research used cohort design with cancer patients who just the first time received cisplatin ≥ 50 mg/m2 and or its combination, and also got ondansetron-dexamethasone as anti-emetics. While the patients were given EORTC QLQ-C30 questionnaire before got cisplatin (before chemotherapy) and 5 days after got cisplatin (after chemotherapy). The difference of the quality of the life will be analysed with paired t-test with 95 % level of significancy. The correlation between the domains before and after chemotherapy was analysed by Pearson correlation test with the 95 % level of significancy.We got 38 patients during 2 months with the cancer diagnoses of cervix, nasopharyng, ovarium and lung. Generally, the quality of life was nonsignificantly decreasing, whereas not all the domains were decreasing. The physical, emotions, cognitive and social domains were non-significantly increasing. The decline in the quality of life was more influenced by the role domain of the patients, pain, the decline in appetite and the financial difficulty. The correlation of fatigue, constipation and the financial difficulty were strong between the domain in before and the chemotherapy after was received in the symptom (r ≈ 0.50).Key words : quality of life, cancer, EORTC QLQ-C30

    Optimization of chitosan, sodium carboxy methyl celulose and magnesium stearat as mucoadhesive system in captopril tablet

    Get PDF
    Captopril is an angiotensin-converting enzyme inhibitor (ACE inhibitor) used for the treatment of hypertension and some types of congestive heart failure. It has been reported that the duration of antihypertensive action after a single oral dose of captopril is only 6–8 h. Captopril is most stable at acidic condition and as the pH increases, it becomes unstable and undergoes a degradation reaction. These indicates a promising potential of the captopril mucoadhesive system as an alternative to the conventional dosage form. The objective of the current study was to find an optimum formula of mucoadhesive tablet for captopril using factorial design. Tablets were evaluated for mucoadhesive strength and drug release profile. The studies were perfomed to establish composition of chitosan, sodium CMC and Mg stearat. Such composition could produce mucoadhesive strength with a zero order release kinetics. A 23 factorial design has been applied to systematically optimize the formula. The amounts of chitosan (XA), sodium CMC (XB), and Mg stearat (XC) were selected as independent variables. Mucoadhesive strength and dissolution efficiency (DE480) were selected as dependent variables. According the contour plot suggested that optimum formula will be reach mucoadhesive strength (26-30 g) and DE480 (≥70 %) chitosan at low to middle level (20-35 mg), sodium CMC at middle to high level (150-200 mg), and Mg stearat at low to middle level (4-6 mg).Key words : mucoadhesive, factorial design, DE480 , chitosan, CMC Na, Mg stearat, contour plo

    409

    full texts

    442

    metadata records
    Updated in last 30 days.
    Open Journal Systems
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇