bluuebunny/crossref_metadata_2025 huggingface dataset:
Retrieval of retained Jamshidi needle fragments during minimally invasive surgery
Authors: Wang Michael Y. , Block Spencer
Published: February 2011

As surgical techniques evolve, new intraoperative complications are prone to occur. With percutaneous spinal fixation, the control of implants and instruments can be a challenge when compared with open surgery, particularly if unintended instruments are retained or difficult to retrieve. In this report, the authors describe a case in which Jamshidi needle fragments broke within the vertebral body. Extraction of the fragments was accomplished using a small pedicle screw tap to first engage the retained metal and then to loosen the surrounding bone to allow retrieval and preservation of the anatomical structures needed to complete the intended operation. This technique may prove useful for the retrieval of deformable, cannulated metal pieces in minimally invasive surgery.
Rebleeding risk after treatment of ruptured intracranial aneurysms
Authors: Fleming J. Brett , Hoh Brian L. , Simon Scott D. , Welch Babu G. , Mericle Robert A. , Fargen Kyle M. , Pride G. Lee , Purdy Phillip D. , Shannon Chevis N. , Harrigan Mark R.
Published: February 2011

Object

Postprocedural rebleeding is a significant source of morbidity following endovascular treatment of ruptured intracranial aneurysms. Previous large-scale reports include the Cerebral Aneurysm Rerupture After Treatment trial, the International Subarachnoid Aneurysm Trial, and the study on Early Rebleeding after Coiling of Ruptured Cerebral Aneurysms, which reported nonprocedural rebleeding rates within 30 days of treatment of 2.7%, 1.9%, and 1.4%, respectively. However, coiling of intracranial aneurysms is in a state of continual change due to advancing device design and evolving techniques. These studies included only patients initially treated prior to 2004. In the present study the authors assess the most recent short-term results with endovascular treatment of ruptured aneurysms.

Methods

A multicenter retrospective chart review was conducted of patients undergoing endovascular treatment for ruptured intracranial aneurysms between July 2004 and October 2009. The technique used, including the use of stent or balloon assistance, was evaluated. Demographic and clinical factors, such as sex, age, initial clinical presentation, aneurysm size, aneurysm location, and modified Raymond Classification following initial treatment, were also evaluated and compared between the groups in which rebleeding did and did not occur.

Results

A total of 469 patients underwent endovascular treatment for a ruptured aneurysm; nonprocedural rehemorrhage occurred within 30 days of the initial coiling in 4 cases (0.9%). Two patients (50%) died after rehemorrhage. Stent-assisted coiling was used during the original treatment in 1 (25%) of the 4 patients with a rerupture. However, no technical, clinical, or demographic factors were found to be statistically significant in association with rebleeding.

Conclusions

Recent data suggest that the periprocedural rebleeding rate may be improving over time.
The Antidiabetic and Antilipidemic Activity of Aqueous Extract of Urtica dioica L. on Type2 Diabetic Model Rats
Authors: Das M , Sarma BP , Khan AKA , Mosihuzzaman M , Nahar N , Ali L , Bhoumik A , Rokeya B
Published: February 2011

Context: To evaluate the anti-diabetic activity of Urtica dioica L. in type 2 diabetic model rats.Objectives: The aim of this study is to explore the effect of water extract of U. dioica on glycemic status, body weight and lipidemic status in type2 diabetic model ratsMaterials and Methods: The mature and fresh leaves of U. dioica was collected from the mountain range of Assam in India and the leaves extract was used at a dose of 1.25 g-kg body weight. Type2 diabetes was induced by a single intraperitoneal injection of STZ to 48 hours old pups of Long Evans. Experiments for semi-chronic effects were done with continuous feeding of aqueous extract for 14 days at a dose of 1.25 g-kg body weight type 2 diabetic male rats. Serum glucose was estimated by GOD-POD method, serum triglyceride and cholesterol by enzymatic-colorimetric methods.  Results: Water extract showed significant effect on lowering fasting serum glucose levels in type 2 diabetic model rats on 14th day (14.05 ± 3.4 mmol/l in control vs 8.3 ± 1.4 mmol/l in treated group, p = 0.04). There was significant increase in the body weight of treated group in comparison to the control group (175 ± 8 g in control vs in 168 ± 9 g in treated group on 0 day, p = ns; 193 ± 26 g in control vs in 185 ± 25 g in treated group on 14th day, p=0.002]. Beneficial effect was observed in lipid although the change was not statistically significant.Conclusion:  The results obtained in this study suggests that U. dioica has hypoglycemic and hypo-lipidemic activity in type 2 diabetic model rats. This may be due to the histological and functional improvement of b-cells with the consequence of improved insulinemic status.Key words: hypoglycemic; hypolipidemic; Urtica dioica; diabetes mellitusDOI: 10.3329/jbs.v17i0.7092J. bio-sci. 17: 1-6, 2009
Deposition Flux of Perfluorinated Compounds in Wet Deposition Samples in Yokohama, Japan
Authors: Salam MA , Hossain MS , Haq MA , Parvez MAK
Published: February 2011

Context: Perfluorinated compounds (PFCs) have emerged as priority environmental contaminants and detected in the environmental and biological matrices concerns due to their persistence and toxicity.Objectives: To determine the atmospheric deposition of perfluorinated compounds (PFCs) through wet deposition in Japan and measure their environmental levels and deposition flux of wet deposition for assessing the environmental distribution of PFCs. Materials and Methods: Environmental levels and estimation of deposition flux of perfluorooctane sulfonate (PFOS) and perfluorocarboxylates (PFCAs) were carried out through wet deposition in urban atmosphere of Yokohama, Japan. Solid phase extraction method coupled with high performance liquid chromatography-negative ion electrospray tandem mass spectrometry was used to quantify target PFCs in collected samples. Results: The highest concentration (95.33 ng/L) among target compounds was in snow sample of perfluorooctanoic acid (PFOA). Concentration ranges of perfluorohexanoic acid (PFHxA), perfluoroheptanoic acid (PFHpA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA) and perfluorooctane sulfonate (PFOS) were 0.01-1.86ng/L, 0.01-1.39 ng/L, 0.01-9.02 ng/L, 0.07-3.66 ng/L, 0.03-0.65 ng/L, and 0-0.47 ng/L, respectively. It was found that 0.6-60 fold differences existed for snow and rain water samples of which PFOA possess highest sixty  folds. Statistically significant correlations between various PFCs in wet deposition samples suggested common sources of PFCs in the study area. Wet deposition flux showed monthly variation with increased amount of load during July to September. Total amount of PFCAs in wet fluxes showed composition patterns of PFOA>PFNA>PFHxA>PFHpA>PFDA.Conclusion: Wet deposition may be a potential transport mechanism of perfluorinated chemicals in the environment.Key words: Perfluorinated Chemicals; Environmental Level; Deposition flux; YokohamaDOI: 10.3329/jbs.v17i0.7093J. bio-sci. 17: 7-12, 2009
Distribution of Motile Aeromonads, Pseudomonads and Oxytetracycline Resistant Bacteria in Freshwater Catfish Pangasius pangasius Hatcheries of West Bengal, India
Authors: Abraham T Jawahar , Bharathkumar G
Published: February 2011

Context: Understanding the distribution of different groups of bacteria and their role in the hatchery production of catfishes is important for the implementing of appropriate disease control strategies and sustainable production.Objectives: The aim was to study the distribution of total viable bacteria, motile aeromonads, pseudomonads and oxytetracycline (OTC) resistant bacteria in Pangasius pangasius hatcheries of West Bengal, India. Materials and Methods: Following standard methods, quantification of total viable counts (TVCs) on tryptic soy agar (TSA), motile aeromonads on starch ampicillin agar, pseudomonads on Pseudomonas isolation agar and antibiotic resistant bacteria on TSA supplemented with OTC at 25-mg/ml was done from fertilized eggs, hatching pool water, larvae, larval rearing water and source water collected in three P. pangasius hatcheries in West Bengal, India. Results: The hatching pool water had high levels of TVCs and motile aeromonads than in source water. The magnitude of increase in the levels of TVCs and motile aeromonads in hatching pool water was to the tune of 2 to 3 log units than in source water. The mean counts of viable bacteria, motile aeromonads, pseudomonads and OTC resistant bacteria recorded on fertilized P. pangasius eggs were log5.48 ± 0.28 /egg, log4.11 ± 0.29 /egg, log3.32 ± 0.35 /egg and log4.50 ± 0.56 /egg, respectively. In larvae the counts were log6.58 ± 0.31 /g and log5.36 ± 0.23 /g, log4.34 ± 0.20 /g and log5.74 ± 0.22 /g respectively for viable bacteria, motile aeromonads, pseudomonads and OTC resistant bacteria. The OTC resistant bacteria were ranged from 0.91 to 24.29%, 5.12 to 22.67% and 11.49 to 20.83% of TVCs in water, eggs and larvae, respectively. Significant differences existed among the OTC resistant bacteria between eggs and larvae, and larval rearing water and larvae. Conclusion: The results of this study suggest that there is an urgent need on the prudent use of antibiotics in pangasid catfish hatcheries and to control the bacterial flora by other means. Key words: Catfish hatchery; Pangasius pangasius; Aeromonads; Pseudomonads; Oxytetracycline resistant bacteriaDOI: 10.3329/jbs.v17i0.7094J. bio-sci. 17: 13-20, 2009
Sugar Productivity Assessment of Newly Developed Promising Genotypes of Sugarcane
Authors: Tiawari DK , Pandey P , Singh RK , Singh SP , Singh SB
Published: February 2011

Context: The prime concern of cane growers and the sugar industry is to achieve higher sugarcane productivity and high sugar recovery both of which support maximum economic return. This requires newly developed sugarcane genotypes.Objectives: To study the performance of newly developed sugarcane genotypes for plant crop and ratooning ability in U.P. Condition.   Materials and Methods: The performance of newly developed sixteen promising sugarcane genotypes along with three standards check viz.; CoJ64, CoS95255 and CoS767 were evaluated during 2005-07 at Shahjahanpur, Uttar Pradesh, India. Results: The experimental results revealed that significantly higher commercial cane sugar (CCS) yield was observed by the genotype UP49 (13.19 t ha-1), CoS06262 (13.67 t ha-1), CoS05263 (13.70 t ha-1), CoS06247 (12.67 t ha-1), CoS05259 (13.12 t ha-1) over three standards CoS767 (9.41 t ha-1), CoJ64 (9.54 t ha-1) and CoS95255 (12.56 t ha-1). The genotype UP49 (10.50 t ha-1) recorded highest CCS% followed by CoS06247 and CoS05263 having 10.49 t ha-1 and 10.29 t ha-1 respectively in ratoon crop. Amongst all the genotypes UP49, CoS06262, CoS05263, CoS06248, CoS06253, CoS05259 and CoS06263 were proved significantly superior over all the three standards checks in respect of cane yield. Conclusion: The UP49 was found the best performer and superior to widely adopted variety CoS767 in respect of cane yield, commercial cane sugar percent, sugar yield and pol percent in cane; under plant and ratoon crops. Key words: Sugarcane; ratoon; CCS%; sugar yield and productivity.DOI: 10.3329/jbs.v17i0.7099J. bio-sci. 17: 41-44, 2009
Performance of Cypermethrin, Deltamethrin and Nimbicidine on Larval Development of Tribolium castaneum (Herbst)
Authors: Khatun R , Islam W , Mondal KAMSH
Published: February 2011

Context: Pyrethroid insecticides and natural products individually or in mixture can protect stored products by retarded growth and delayed larval period.Objectives: To investigate the effects of cypermethrin, deltamethrin and azadirachtin either alone or in combinations on the larval development of Tribolium castaneum (Herbst).Materials and Methods:  T. castaneum larvae were reared in flour medium treated with cypermethrin, deltamethrin and nimbicidine alone and in combinations. Ten newly hatched larvae were placed in a petri dish (4cm diam) containing 1g of either fresh or treated flour and kept in an incubator (30 ± 0.5°C).  The larvae were regularly observed for pupation and the larval period was noted. The weights of the fourth and sixth instar larvae were taken on an electric balance. Twenty larvae from each age were weighed for different treatments.Results: The larval period was 36.25 days in the treatment of combined cypermethrin, deltamethrin and nimbicidine. Both cypermethrin (20.55 days) and deltamethrin (20.38 days) failed to prolong the larval period significantly (P>0.05) in comparison with that control (19.68 days). In nimbicidine the average larval period was 30.38 days. Larval weight was significantly (P<0.05) reduced by nimbicidine alone and in combination with cypermethrin and deltamethrin in comparison with that of control. In control the average weight of 9 days old larvae was 188.60 mg. The lowest larval weight was 75.50 mg when nimbicidine was combined with cypermethrin and deltamethrin. In nimbicidine alone it was 84.25 mg. The average weight of 16 days old larvae in control was 2142.75 ± 62.67 mg with the lowest being 1955.05 mg in the treatment of combined cypermethrin, deltamethrin and nimbicidine.Conclusion: Azadirachtin either alone or in combination with pyrethroid insecticides viz., cypermethrin and delatmethrin may reduce T. castaneum larval development and thus shows excellent protection of stored products. Key words: Cypermethrin; Deltamethrin; Nimbicidine; Larvae; Growth; Development; Tribolium DOI: 10.3329/jbs.v17i0.7100J. bio-sci. 17: 45-50, 2009