20 research outputs found
Factors Associated with Revision Surgery after Internal Fixation of Hip Fractures
Background: Femoral neck fractures are associated with high rates of revision surgery after management with internal fixation. Using data from the Fixation using Alternative Implants for the Treatment of Hip fractures (FAITH) trial evaluating methods of internal fixation in patients with femoral neck fractures, we investigated associations between baseline and surgical factors and the need for revision surgery to promote healing, relieve pain, treat infection or improve function over 24 months postsurgery. Additionally, we investigated factors associated with (1) hardware removal and (2) implant exchange from cancellous screws (CS) or sliding hip screw (SHS) to total hip arthroplasty, hemiarthroplasty, or another internal fixation device. Methods: We identified 15 potential factors a priori that may be associated with revision surgery, 7 with hardware removal, and 14 with implant exchange. We used multivariable Cox proportional hazards analyses in our investigation. Results: Factors associated with increased risk of revision surgery included: female sex, [hazard ratio (HR) 1.79, 95% confidence interval (CI) 1.25-2.50; P = 0.001], higher body mass index (fo
Preliminary pharmacognostic and phytochemical analysis of “<i style="">Granthika</i>” (<i style="">Leonotis nepetaefolia</i>): An Ayurvedic herb
682-688Botanical identification data and
phytochemical characterization of a medicinal plant provides authentic means to
be used these as crude herbs or extracts, pure natural compounds and foods
having health benefits. The present study is based on preliminary
pharmacognostic and phytochemical investigation on root and leaves of Leonotis nepetaefolia (L.)
R. Br. (Lamiaceae- Mint family). The plant is also
known as Granthiparni or Granthika
in Ayurveda. Leaves are used in tropical countries and roots are used in
Ayurveda for its saluting physiological properties. Pharmcognostic studies
reveals presence of multicellular trichomes with lignified fibres in leaves and
xylem fibres in root powder. Phytochemical studies suggest presence of alkaloid
in leaves and terpenoid along with other phytoconstituents in leaves and roots.
HPTLC fingerprint of plant extract is useful in characterization of plant
extract for standardization
Rapid validated high performance thin layer chromatography method for simultaneous estimation of mangiferin and scopoletin in Canscora decussata (South Indian Shankhpushpi) extract
AbstractMangiferin (polyphenolic xanthone) and scopoletin (phenolic coumarin) are well-studied biological markers present in Canscora decussata(Roxb.) Roem. & Schult., Gentianaceae. The objective set for the present studies is to establish and develop a new, simple, selective, sensitive, and precise high performance thin layer chromatography method for the simultaneous estimation of mangiferin and scopoletin in hydroalcoholic extract of C. decussata. The thin layer chromatographic separation of these biomarkers was carried out on aluminum plate pre-coated with silica gel 60F254, eluted with ethyl acetate:acetic acid:formic acid:water (10:0.5:0.5:1.5). The plate was then dried and densitometric scanning was performed at 254 nm using a Camag TLC scanner III. The system was found to give compact spots for mangiferin (RF 0.22) and scopoletin (RF 0.78). A good relationship of linear precision between the concentrations (100–600 ng/spot) and peak areas was obtained with correlation coefficient (r) of 0.9979 (mangiferin) and 0.9962 (scopoletin), respectively. The limits of detection and limit of quantification were determined to be 46 and 94 ng/spot for mangiferin and 31 and 78 ng/spot for scopoletin respectively. The percentage of recovery was found from 99.91 to 99.94% for mangiferin and 99.75 to 99.86% for scopoletin. Results obtained from recovery studies showed excellent reliability and reproducibility of the method. Present communication on validated high performance thin layer chromatography method may provide a new, selective, sensitive, and precise method to estimate mangiferin and scopoletin as phytomarkers in the hydroalcoholic extract of C. decussata used in Ayurvedic formulations
Association of the patterns of global DNA methylation and expression analysis of DNA methyltransferases in impaired spermatogenic patients
Objective: To analyze global DNA methylation along with DNA methyltransferases (DNMTs) expression at transcript level in patients with impaired spermatogenesis to dissect its role in pathophysiology of human male infertility.
Method: The content of Global methylated cytosine (mC) was determined using ELISA system (Imprint Methylated DNA Quantification Kit, Sigma–Aldrich) in 31 testicular biopsies showing impaired spermatogenesis and 8 with normal spermatogenesis. Real-time reverse transcription-polymerase chain reaction was done to analyze DNMTs (DNMT1, DNMT3A, DNMT3B and DNMT3L) mRNA levels in biopsies with different testicular phenotypes.
Results: There was significant increase in levels of global methylation in different impaired testicular phenotypes as compared to normal. Expression analysis revealed significantly increased expression of DNMT1 and its positive correlation with global DNA methylation.
Conclusion: In conclusion, increased levels of global methylation in impaired cases might be the one of the contributing factors for aberrant gene expression in infertile patients
Association of polymorphism in cell death pathway gene FASLG with human male infertility
Objective: To investigate –844C>T single nucleotide polymorphism (SNP) present in the promoter of cell death pathway gene FASLG with male infertile phenotype.
Methods: Genotyping for SNP FASLG (rs763110) was done by polymerase chain reaction followed by analysis with specific endonuclease (PCR-RFLP). DNA sequencing was used to ascertain PCR-RFLP results.
Results: FASLG –844C>T polymorphism, allele and genotype distribution did not differ significantly between patients and controls (OR: 1.03, 95% CI= 0.7638 to 1.3952, P=0.83). Thus SNP-844C>T of the FASLG gene is not associated with male infertility risk in the analyzed patients.
Conclusions: Human male infertility is a complex disorder and thus other genetic or environmental factors may be contributing to the complex etiology, and further study in other region of Indian populations will verify whether it is associated with male infertility risk
Comparative pharmacognostical investigation on four ethanobotanicals traditionally used as Shankhpushpi in India
People in Indian region often apply Shankhpushpi and other Sanskrit-based common name to Evolvulus alsinoides, Convolvulus pluricaulis, Canscora decussata, and Clitorea ternatea. These are pre-European names that are applied to a medicinal plant. Before the establishment of British rule, like the other books, ayurvedic treatises were also hand written. This might be one of the reasons due to which ayurveda could not stand parallel to the western medicine and an ambiguity is reflected in the interpretation of names and description of drugs found in the books like Charaka Samhita and Sushruta Samhita. The most widespread application of Shankhpushpi is for mental problems, but they have been considered for an array of other human maladies. The present investigation deals with the comparative pharmacognostical evaluation of four ethanobotanicals of Shankhpushpi. A comparative morphoanatomy of the root, stem, and leaves has been studied with the aim to aid pharmacognostic and taxonomic species identification. Various physicochemical, morphological, histological parameters, comparative high-performance thin-layer chromatography (HPTLC), and comparative high-performance liquid chromatography (HPLC), chromatogram of methanolic extract presented in this communication may serve the purpose of standard parameters to establish the authenticity of commercialized varieties and can possibly help to differentiate the drug from the other species. All the parameters were studied according to the WHO and pharmacopoeial guidelines
Surgical complications of radical retropubic prostatectomy: A single institutional experience of seven years
Aim: To determine the surgical complications of open retropubic radical prostatectomy.
Materials and Methods: Fifty-nine cases of localized prostate cancer underwent retropubic radical prostatectomy in our department in the last seven years. Standard technique of open retropubic radical prostatectomy as described by Walsh was used. During follow-up cancer control and quality of life indices (potency and urinary continence) were noted.
Result: Postoperative recovery of all patients except one was excellent. This patient required cardio-respiratory support and nine units of blood transfusion. Forty-nine out of 52 patients were continent, two had stress incontinence and one was totally incontinent at one year. Bladder neck contracture was present in eight out of 52 patients at one year. Forty-five patients were impotent at one year with or without oral tablet sildenafil. Cancer control was present in 45 out of 52 cases. Seven cases had biochemical failure at one year.
Conclusion: Though retropubic radical prostatectomy is the standard treatment for early prostate cancer it is not without complications. It has a steep learning curve. More number of cases and refinement in technique is required to achieve world-class results