title: Assesment of endocrinal and biochemical entities through liquid chromatography-tandem mass spectrometry/mass spectrometer: Inter-relative investigation of the interaction based cardiovascular formulation.
abstract: BACKGROUND
  Combinatory oral dosage treatment of atorvastatin (ATVS) and olmesartan (OLM) drugs to cardiovascular patients reflects unpredicted results instead of its individual therapy, which was accessed on quantification of endocrinal and biochemicals of plasma through liquid chromatography-tandem mass spectrometry/mass spectrometer (LCMS/MS).
  
  
  OBJECTIVE
  Mission was to track the remarkable biochemical variation in the plasma after induction of the combined formulation, to evaluate the pharma-market rumor on its efficiency.
  
  
  METHODS
  To fulfil undergoing research objectives for digging-up of market insult, human patient volunteers were chosen according to the required criteria along with bioethical regulation. A sensitive, rapid and precise method was developed and validated to estimate aldosterone (ALD), angiotensin (ANG-II) and the Mevalonate (MVA) not Mevalonic acid through LCMS/MS over least samples of cardiovascular patients. Level of each endogenous biochemicals were determined in three stages - without drugs, with a single drug (OLM/ATVS) and with their combination that was then correlate with blood pressure of respective volunteers.
  
  
  CONCLUSIONS
  Comparative and correlative studies panaroma among these analytes was detected. The selectivity, specificity, linearity, precision, accuracy, extraction recovery, limit of detection and limit of quantification, stability were the essential points of validation of the developed methodology. And the significance of each endogenous analyte data were based on P ≥ 0.001. Thus, low value of ALD and reciprocally higher in ANG-II on administered single drug than its combination and equal concentration of mevalonate in both stages, was discovered.
  
  
  CONCLUSIONS
  This concludes that the cardiovascular dosage formulation entrenched in the market are not synergistic and effective compared with a single drug as antihypertensive drug.
authors.affiliation: Department of Pharmaceutical Technology, Bioequivalence Study Center, Jadavpur University, Kolkata, West Bengal, India.
authors.forename: Rakesh
authors.initials: R
authors.lastname: Das
authors.affiliation: Department of Pharmaceutical Technology, Bioequivalence Study Center, Jadavpur University, Kolkata, West Bengal, India.
authors.forename: Tapan Kumar
authors.initials: TK
authors.lastname: Pal
keywords: Cardiovascular dosage; developed method and validation; drug interaction; endogenous biochemical; liquid chromatography-tandem mass spectrometry/mass spectrometer estimation