Morphometric and gut microbial evaluation of Tilapia (Oreochromis niloticus) fed on different levels of Moringa oleifera

Abstract In current study, different feeding levels of Moringa oleifera formulated diet was compared to analyze the growth performance, feed conversion ratio, feed conversion efficiency and gut microbiology of Oreochromis niloticus. The study was comprised of four treatment groups including 4%, 8% and 12% Moringa oleifera and one control group which was devoid of Moringa leaves. The experimental trial was conducted at the Zoology laboratory of Pakistan Institute of Applied and Social Sciences, (PIASS) Kasur. The physicochemical parameters of water such as temperature, dissolve oxygen, pH, total dissolved solids and salinity in all aquaria were found non-significantly different from each other. In control condition T1, the average weight gain was 14.89±16.90a grams, while average length gain was 11.52±7.444a cm. However, the total viable count on Eosin methylene blue was 7.4×107, 5.8×107 on Tryptic soy agar and 5.8×107on Nutrient agar. In T2, the average weight gain was 16.22±16.09b grams and average length gain was 12.97±7.79b cm. The total viable count on Eosin methylene blue was 7×107, 5.5×107 on Tryptic soy agar and 5.8×107on Nutrient agar. In T3, the average weight gain was 37.88±27.43c grams, while the average length gain was recorded as 16.48±12.56c cm. However, the total viable count for treatment 3 was 6.4×10 on Eosin methylene blue, 4.8×107 on Tryptic soy agar and 5.2×107on Nutrient agar. In T4, the average weight gain was 44.22±31.67d grams, while the average length gain was 15.25±10.49d cm. The total viable count was 4.3×107on Eosin methylene blue, 3.1×107 on Tryptic soy agar and 3.8×107 on Nutrient agar. The effect of Moringa oleifera on the growth of Oreochromis niloticus was found to be significant and 12% Moringa extract showed maximum length and weight gain and minimum feed conversion ratio with the least microbial count in fish intestine.

Factors affecting confidence and competence of doctors in performing operative vaginal births: A qualitative study

OBJECTIVES

Operative vaginal birth (OVB) is an important skill for obstetricians. It is the most common emergency intervention in obstetrics and requires a high degree of skill. While there is a lot of data available on technical and non-technical factors affecting the outcome of OVBs little work has been done to investigate the factors that make obstetricians feel confident and competent when performing such a procedure. The objective of this study was therefore to identify the common factors that affect confidence and competence of obstetricians in operative vaginal births (OVB). Our hypothesis was that a qualitative research method would provide a rich approach where themes would be developed that the participants themselves identify as important.

STUDY DESIGN

Qualitative research within two University Hospitals and one District Hospital in Ireland. Participants interviewed ranged from first year trainees to consultant obstetricians. Interviews using open ended questions. Interviews were recorded on audio and later transcribed. Thematic analysis was performed until saturation.

RESULTS

35 obstetricians were interviewed. The median number of years of experience was 5 years (range 3-20 years). The median number of OVB was 200 (range 20-1000+). Vacuum was the preferred choice amongst junior trainees. Preference shifted to forceps with increasing clinical experience. Seven clear themes emerged. Three themes were common to all participants: firstly, that all clinicians reported respect for the primiparous OVB in anticipation of possible complications, secondly the wish for senior midwifery support and finally the importance of clinical experience and exposure. Four themes were common to trainees only. Female clinicians in training reported significant self-doubt in their ability to perform an OVB and had concerns about causing harm. Clinicians in training wished to be trained by consultants during their first year on the labour ward. Experience was important. The final theme was a wish for more training in forceps OVB by clinicians in training.

CONCLUSION

This qualitative study identified factors that can be used to design education and training in OVB in order to support trainees and ultimately improve care for the woman and baby.

Finding Novel Anti-carcinomas Compounds by Targeting SFRP4 Through Molecular Modeling, Docking and Dynamic Simulation Studies

BACKGROUND

Secreted Frizzled-Related Protein 4 (SFRP4) is a glycoprotein that acts as a competitor of both canonical and non-canonical Wnt pathways. SFRP4 is mostly expressed in ovary and plays a significant role as a target molecule to cure ovarian carcinoma.

OBJECTIVE

Multiple chemical agonists are being used to cure ovary melanoma. We are interested in theoretically analyzing the compounds through computational approaches for their potential inhibitory effects against SFRP4.

METHODS

Compounds were sketched in Chemsketch drawing tool and minimized through chimera tool. Because the crystal structure of SFRP4 is not available in Protein Data Bank, homology modeling approach was used to predict Three-Dimensional (3D) crystal structure of SFRP4. Moreover, multiple computational approaches such as molecular docking and Molecular Dynamic (MD) simulations along with various online tools were employed to screen the best inhibitor against ovary melanoma.

RESULTS

The docking results showed that 1d and 1e compounds revealed significant binding energy values (-9.10 and -9.00 kcal/mol, respectively) compared with the standard drugs such as cis-platin and docetaxel (-3.30, -10.80 kcal/mol), respectively. Moreover, MD simulation results showed that 1d has little fluctuations throughout the simulation period as depicted by the root mean square deviation and root mean square fluctuation graphs.

CONCLUSION

The present in-silico study provides a deeper insight into the structural attributes of 1d compound and its overall molecular interactions against SFRP4 and gives a hypothetical gateway to use this compound as a potential inhibitor against ovarian carcinoma.

Mapping changes in surgical mortality over 9 years by peer review audit

Background

There is increasing public scrutiny of deaths among surgical patients. This analysis sought evidence of changes in practice over time in the management of patients who died under surgical care.

Methods

The surgeons and anaesthetists in National Health Service hospitals providing the care of all surgical patients in Scotland participated in the Scottish Audit of Surgical Mortality (SASM). Data from peer review audit, critical event analysis and individual feedback of deaths while in surgical care over 9 years (1994–2002) were examined for trends over time.

Results

Over a 9-year period, 40 448 patients died while in surgical care. Consultant surgeon and anaesthetist involvement in decision making and operating increased significantly (P < 0·001), and death after elective surgery declined to 0·27 per cent of elective operations. Adverse events were more frequently due to failures of hospital systems or process than to individual clinician errors. Fewer adverse events were identified as having contributed to or caused the death of patients over time (P < 0·001). Failure to use deep vein thrombosis (DVT) prophylaxis and failure to use high-dependency or intensive therapy units (HDU/ITU) became less common, once highlighted by the SASM.

Conclusion

Through continuous peer review audit, the SASM has mapped and may have contributed to changes in surgical and anaesthetic practice over a 9-year period, indicating that the rate of adverse events can be decreased by changing clinician practice (DVT prophylaxis) and provision of facilities (HDU/ITU). Similar approaches should be considered by other medical specialties.