ABSTRACT
Two new sesquiterpenes, trivially named ricinusoids A (1) and ricinusoids B (2), were isolated from ethyl acetate fraction of Ricinus communis. The structures of new compounds were elucidated by detailed spectroscopic techniques, including 1D- and 2D-NMR, UV, IR spectroscopy, and mass spectrometry. The compounds (1-2) were also assessed for in-vivo sedative and analgesic like effects in open field and acetic acid induced writhing tests respectively at 5, 10, and 20 mg·kg i.p. Pretreatment of both test compounds caused significant (P ≤ 0.05) reduction in locomotive activity like sedative agents and abdominal constrictions like analgesics. Both compounds (1-2) possessed marked sedative and antinociceptive effects in animal models.
Subject(s)
Animals , Humans , Male , Mice , Analgesics , Chemistry , Hypnotics and Sedatives , Chemistry , Locomotion , Mice, Inbred BALB C , Molecular Structure , Pain , Drug Therapy , Plant Extracts , Chemistry , Plant Leaves , Chemistry , Ricinus , Chemistry , Sesquiterpenes , ChemistryABSTRACT
Two new sesquiterpenes, trivially named ricinusoids A (1) and ricinusoids B (2), were isolated from ethyl acetate fraction of Ricinus communis. The structures of new compounds were elucidated by detailed spectroscopic techniques, including 1D- and 2D-NMR, UV, IR spectroscopy, and mass spectrometry. The compounds (1-2) were also assessed for in-vivo sedative and analgesic like effects in open field and acetic acid induced writhing tests respectively at 5, 10, and 20 mg·kg i.p. Pretreatment of both test compounds caused significant (P ≤ 0.05) reduction in locomotive activity like sedative agents and abdominal constrictions like analgesics. Both compounds (1-2) possessed marked sedative and antinociceptive effects in animal models.
Subject(s)
Animals , Humans , Male , Mice , Analgesics , Chemistry , Hypnotics and Sedatives , Chemistry , Locomotion , Mice, Inbred BALB C , Molecular Structure , Pain , Drug Therapy , Plant Extracts , Chemistry , Plant Leaves , Chemistry , Ricinus , Chemistry , Sesquiterpenes , ChemistryABSTRACT
Biologically, screening of medicinal plants extracts have been since pre-historic to determine the antioxidants and antimicrobial profile. The present study was aimed to investigate and evaluate crude extract and different fractions of Bergenia ciliata Sternb [rhizome] for bioactivity which is most considerable medicinal plants. The chloroform fraction was found to be highly anti-oxidative with the IC50 value [4.15 +/- 0.82] as compare to ethyl acetate and n-hexane fraction. In addition, neither crude extract nor any fraction showed inhibition against fungal strains, i.e. Aspergillus flavus and Aspergillus niger. Furthermore, the crude extract and fractions of B. ciliata [rhizome] exhibiting promising activities against Bacillus atrophoeus, Bacillus subtilis, Kleibsiella pneumonia and Pseudomonas aeruginosa strains. In summary, B. ciliata is recommended as a source of bioactive compounds which might be used against oxidative stress and drug resistance bacteria
ABSTRACT
Three new alkyl substituted anthraquinone derivatives, trivially named as symploquinones A-C (Compounds 1-3) were isolated from Symplocos racemosa. The structures of these compounds were determined on the basis of extensive spectroscopic analyses (UV, IR, Mass, H- and C-NMR, and two-dimensional (2D) NMR techniques). The resulting data were also compared with the reported literature. These compounds were then subjected to antibacterial or antibiofilm testing. Compounds 1 and 3 exhibited good antibacterial activity in the concentration range of 160-83 μg·mL against Streptococcus mutans, methicillin resistant Staphylococcus aureus and Proteus mirabilis. Both compounds were further screened for anti-biofilm activity, which revealed promising activities at sub-MIC concentrations. None of the compounds were found to be active against Klebsiella pneumoniae.
Subject(s)
Anthraquinones , Chemistry , Pharmacology , Anti-Bacterial Agents , Chemistry , Pharmacology , Biofilms , Ericales , Chemistry , Magnetic Resonance Spectroscopy , Mass Spectrometry , Methicillin-Resistant Staphylococcus aureus , Physiology , Microbial Sensitivity Tests , Proteus mirabilis , Physiology , Spectrophotometry, Infrared , Streptococcus mutans , PhysiologyABSTRACT
OBJECTIVE@#To assess the profile of TB/multidrug-resistant TB (MDR-TB) among household contacts of MDR-TB patients.@*METHODS@#Close contacts of MDR-TB patients were traced in the cross-sectional study. Different clinical, radiological and bacteriological were performed to rule out the evidence of TB/MDR-TB.@*RESULTS@#Between January 2012 and December 2012, a total of 200 index MDR-TB patients were initiated on MDR-TB treatment, out of which home visit and contacts screening were conducted for 154 index cases. Of 610 contacts who could be studied, 41 (17.4%) were diagnosed with MDR-TB and 10 (4.2%) had TB. The most common symptoms observed were cough, chest pain and fever.@*CONCLUSIONS@#The high incidence of MDR-TB among close contacts emphasize the need for effective contact screening programme of index MDR-TB cases in order to cut the chain of transmission of this disease.
ABSTRACT
Objective To assess the profile of TB/multidrug-resistant TB (MDR-TB) among household contacts of MDR-TB patients. Methods Close contacts of MDR-TB patients were traced in the cross-sectional study. Different clinical, radiological and bacteriological were performed to rule out the evidence of TB/MDR-TB. Results Between January 2012 and December 2012, a total of 200 index MDR-TB patients were initiated on MDR-TB treatment, out of which home visit and contacts screening were conducted for 154 index cases. Of 610 contacts who could be studied, 41 (17.4%) were diagnosed with MDR-TB and 10 (4.2%) had TB. The most common symptoms observed were cough, chest pain and fever. Conclusions The high incidence of MDR-TB among close contacts emphasize the need for effective contact screening programme of index MDR-TB cases in order to cut the chain of transmission of this disease.
ABSTRACT
Conocarpus lancifolius [Combretaceae], " ÏãÓ ÓäÇäí " in Arabic, is distributed in Riyadh, Saudi Arabia. It is a heat-tolerant Saudi medicinal plant, demonstrates prominent antidiabetic potential and the fruit extract fruits showed cytotoxicity against MRC-5 cancer cell line, as well as prominent antiprotozoal and antibacterial activities. The objective of this study is to isolate the compounds and evaluate the anti-inflammatory, cytotoxic, PPAR agonistic and antioxidant activities of extracts and pure constituents from C. lancifolius. A new trimethoxyellagic acid derivative 1 and two compounds, kaempferol 3-O-rutinoside 2 and beta-sitosterol glucoside 3 were isolated from the fruits of Conocarpus lancifolius, a heat-tolerant plant. Compound 2 showed strong dual activation for PPAR alpha and PPAR gamma with 2.6 fold increment in PPAR alpha activity, while 2.2 fold increment in PPAR gamma at 25 micro g/mL. This is first report on isolation and screening of different biological activities of extract and pure constituents from fruits of C. lancifolius
ABSTRACT
Background: Rise in intraoccular pressure [IOP] may have significant effects on optic disc
Objective: To compare postmydriasis rise in intraoccular pressure with tropicamide in normal individuals and glaucoma cases with or without rapid progression
Subjects and Methods: Study design: Quasi-experimental. Sampling Technique: Non-Randomized, consecutive sampling. This study was performed on 116 eyes of 116 patients reporting at Eye Department, Combined Military Hospital [CMH], Lahore from 1[st] August 2012 to 30[th] April 2013. They were assigned to three groups based on their glaucoma profile: Group A: Normal subjects without raised IOP or glaucomatous visual field loss. Group B: Diagnosed cases of glaucoma without significant visual field defect progression. Group C: Diagnosed cases of glaucoma with significant visual field defect progression over last two years. SPSS version 16 Software was used for statistical analysis to compare intra-ocular pressure changes postmydriasis in the three groups
Results: IOP rise post-mydriasis was low [1.89 mmhg] in normal individuals whereas the spike was statistically significant in glaucoma patients [5.88 mmHg]. Diagnosed cases of glaucoma with worst prognosis has a relatively higher IOP spike [10.6 mmhg] as compared to those with slower visual field defects [5.88 mmhg] progression.[p<0.05]
Conclusion: Our study showed a significant rise in IOP in glaucoma patients with and without rapid progression as compared to normal subjects. Post-mydriasis IOP spike is a reliable diagnostic and prognostic provocative test for glaucoma suspects and diagnosed cases. However, the negative effects of raised IOP on an already compromised optic nerve head must be kept in mind
ABSTRACT
To compare the intraocular pressure [IOP] lowering effect of topical drug combination [Latanoprost and Timolol] with Latanoprost alone in patients of Primary Open Angle Glaucoma [POAG]. Randomized controlled Trials [RCT]. Armed Forces Institute of Ophthalmology [AFIO] Rawalpindi from December 2009 to May 2011. A total of 240 eyes of 120 patients [68 males and 52 females] were included in the study. The patients were randomized into two groups of 60 each using random numbers table. Group A [60 patients, 12Q eyes] were put on topical drug combination of Latanoprost and Timolol eye drops and Group B [60 patients, 120 eyes] were treated with topical Latanoprost eye drops alone. IOP assessments were done at baseline, 2 weeks, 4 weeks and 8 weeks intervals after initiation of treatment. Both the groups were age matched with mean age in Group A was 56.39 +/- 8.50 years and in Group B was 55.61 +/- 8.95 years [p=0.09]. Both groups showed significant IOP decrease from the baseline at each follow up interval. However after 8 weeks of start of treatment, pressure lowering effect in group A [14.73 +/- 2.50 mmHg] was significantly more as compared to Group B [9.10 +/- 2.51 mmHg] [p<0.001]. Combination therapy of Latanoprost and Timolol is more effective as compared to monoyherapy with Latanoprost in lowering IOP of patients with POAG
Subject(s)
Humans , Male , Female , Prostaglandins F, Synthetic , Timolol , Glaucoma, Open-AngleABSTRACT
To compare corneal astigmatism induced by sutured and sutureless wound closure of the main incision, after phacoemulsification, in patients attending the Eye department, Military Hospital, Rawalpindi. Quasi experimental study. Armed Forces Institute of Ophthalmology, Rawalpindi, from 20th May, 2006 to 19th May, 2007. Sixty patients were included in this study divided in two equal groups. Phacoemulsification with foldable IOL was done in all patients by the same surgeon with same surgical technique. Main incision was closed with a single suture in group A and left sutureless with stromal hydration in group B. Keratometry was performed preoperatively, at day one and 4 weeks post operatively. Postoperative astigmatism in sutured and sutureless groups at the end of first week was [1.00 D +/- 0.38] and [0.88 D +/- 0.35] respectively. At one month postoperatively astigmatism was [0.76 +/- 0.43] and [0.66 +/- 0.32] respectively in the two groups. There was statistically no significant difference between the postoperative astigmatism at one month between the two groups [p> 0.05]. There is statistically no significant difference between post-operative astigmatism after phacoemulsification between a 3.2 mm self-sealing incision whether closed without suture or secured by a single suture