Signaling lansdscape of prostate cancer

Research over the decades has gradually and sequentially shown that both intratumor heterogeneity and multifocality make prostate cancer difficult to target. Different challenges associated with generation of risk-stratification tools that correlate genomic landscape with clinical outcomes severely influence clinical efficacy of therapeutic strategies. Androgen receptor mediated signaling has gained great appreciation and rewiring of AR induced signaling cascade in absence of androgen, structural variants of AR have provided near complete resolution of genomic landscape and underlying mechanisms of prostate cancer. In this review we have attempted to provide an overview of most recent advancements in our knowledge related to different signaling cascades including TGF, SHH, Notch, JAK-STAT in prostate cancer progression and development.

Clinico-pathological findings of Clostridium perfringens type D enterotoxaemia in goats and its hemolytic activity in different erythrocytes

The present investigation was conducted to study the effects of experimental Clostridium perfringens type D enterotoxaemia in teddy goats. Clinical signs started to appear after 30 min of experimental infection like anorexia, diarrhea, dehydration, frothing and dyspnea. Gross lesions consisted of severe congestion in tissues of varying intensity with enlarged mesenteric lymph nodes while histological examination revealed edema of lungs, kidney, and lymph nodes and to some extent in brain along with hemorrhages in lungs and intestines. Clostridium perfringens type D carrying alpha and epsilon toxin genes were amplified with amplicon size about 247 bp and 665 bp, respectively. Human erythrocytes showed the highest hemolysis, 68%, followed by mice, 57%, against culture supernatants. The percentage of hemolysis was significantly higher at 37°C as compared to 25°C except for rabbit and dog.

Paediatric urology training: what does the future hold?

BACKGROUND

Paediatric urology training is not a mandatory part of higher surgical training in urology in Ireland. It is predicted there will be a shortfall of surgeons trained in paediatric surgery in the coming years leading to a reliance on specialist paediatric surgical centres.

AIM

The aim of this study was to assess the attitudes of urological trainees regarding the current state of paediatric urology training and to address the potential future changes to training structures.

METHODS

A voluntary anonymous internet-based survey was emailed to all urological trainees. Parameters assessed included sex, level of training, attitudes towards paediatric urology training and levels of competence regarding core paediatric urological procedures.

RESULTS

69.2 % (n = 18) responded to the survey. 94.4 % (n = 17) would favour mandatory paediatric training-of these, 52.9 % (n = 9) would favour this in a dedicated paediatric hospital with a paediatric urologist. 66.7 % (n = 12) would like to provide a paediatric urology service as a consultant. 55.6 % (n = 10) felt they were competent to perform circumcision or scrotal exploration independently and manage all associated complications. No trainee felt themselves to be competent to perform orchidopexy independently and manage all complications.

CONCLUSION

Our study demonstrates a promising desire to provide paediatric services in the future. A greater emphasis on structured paediatric urology training is required to maintain the standard currently offered by adult urologists.

The use of smartphone applications by urology trainees

OBJECTIVE

Mobile phone technology is continuously advancing- the smartphone allows users instant access to information via the internet. Downloadable applications (apps) are becoming widespread across medical specialities. The aim of this study was to assess the use of smartphone apps among urology trainees in Ireland.

METHODS

An anonymous electronic survey was distributed via Survey Monkey(®) to all urology trainees in Ireland assessing their ownership and use of smartphones and downloadable apps. A search of urology apps was performed using the Apple App Store and the Android Market.

RESULTS

36 (81.8%) of trainees responded with 100% ownership of smartphones. 28 (77%) report downloading apps with 11 (30.6%) reporting paying for them. The mean number of apps downloaded was 4 (Range 1-12). 16 (44.4%) trainees think apps for smartphones are very useful in clinical practice, 14 (42.4%) think they are useful. A total of 126 urology apps were available. 76 (60.3%) were designed for physicians, 46 (36.5%) for patients, 2 (1.6%) for students and 2 (1.6%) for urological nurses.

CONCLUSION

There are an ever increasing number of urology apps available. Urology trainees are using smartphones as an educational and reference tool and find them a useful aide in clinical practice.

Paediatric orchidopexy: a need for dedicated paediatric surgical training among urologists?

BACKGROUND

Undescended testis (UDT) is one of the most common congenital abnormalities with a prevalence of about 1% at the age of 1 year. UDT is associated with an increased risk of testicular tumours and infertility.

AIMS

The aim of this study was to assess who is carrying out paediatric orchidopexy in Ireland.

METHODS

A survey was distributed via Survey Monkey to all Consultant Paediatric Surgeons and Urologists in Ireland.

RESULTS

Twenty-seven (64.3%) urologists and five (71.4%) paediatric surgeons responded to our online survey. Of the urologists, 100% reported formal training in paediatric orchidopexy. Eight (29.6%) underwent a dedicated paediatric fellowship. 13 (48.1%) currently perform paediatric orchidopexy. Nine (33%) think it should be carried out by a urologist, whereas eight (29.6%) think it should be carried out by paediatric surgeon. The mean age at which urologists think an orchidopexy for UDT should be performed by was 18 months (range 1-4 years). Approximately 400 orchidopexies are performed per year by the surveyed urologists. Of the paediatric surgeons, three (60%) feel it should be carried out by a paediatric surgeon whereas two (40%) feel it does not matter. All paediatric surgeons feel it should be performed by 1 year of age. Approximately 700 orchidopexies are performed per year by the surveyed paediatric surgeons.

CONCLUSION

UDT is a concerning condition which requires intervention at an early stage. Dedicated training in core paediatric procedures is required to continue to meet this need for the future to prevent delayed orchidopexy and resultant increased risk of testicular tumours.

High efficiency direct shoot organogenesis from leaf segments of Aerva lanata (L.) Juss. ex Schult by using thidiazuron

An efficient protocol for direct shoot organogenesis has been developed for the medicinal plant Aerva lanata (L.) Juss. ex Schult. Regeneration was achieved from leaf segments of 20 days old in vitro plantlets raised on Murashige and Skoog (MS) medium containing 0.25-2.0 mg L(-1) thiadiazuron (TDZ), 3% sucrose, and 0.8% agar. After 21 days of culture incubation, maximum number of shoot organogenesis (23.6 ± 0.16) was obtained on medium containing 1.0 mg L(-1) TDZ. The shoots were able to produce in vitro flowers on medium containing 1.0 mg L(-1) TDZ in combination with 0.25-0.5 mg L(-1)  α-naphthaleneacetic acid (NAA). Histological observation showed that the epidermal cells of the leaf explants exhibited continuous cell division led to formation of numerous dome shaped meristematic protrusions and subsequently developed into adventitious shoots. Upon transfer of shootlets to half strength MS medium containing 1.0 mg L(-1) indole-3-butyric acid (IBA), around 86% of the regenerated shoots formed roots and plantlets. Rooted plants were hardened and successfully established in the soil at the survival rate of 92%. The regeneration protocol developed in this study provides an important method of micropropagation of this plant. Furthermore, this protocol may be used for a large scale production of its medicinally active compounds and genetic transformations for further improvement.

Common filaggrin null alleles are not associated with hymenoptera venom allergy in Europeans

The association of filaggrin mutations with atopic eczema (atopic dermatitis, AD) is well established and it is thought that filaggrin dysfunction impairs the skin's barrier function allowing allergen penetration and subsequent cutaneous sensitisation and inflammation. However, as most forms of barrier dysfunction are not associated with allergic sensitisation to common allergens, the possibility that filaggrin itself is involved in Th1/Th2 polarisation remains. We tested the hypothesis that allergen delivered to the skin independently of the stratum corneum is not associated with filaggrin mutations. Wasp stings bypass the stratum corneum and deliver antigen to the dermis. We found that European individuals with AD (n = 32) have an increased frequency of the 2 commonest filaggrin null mutations (R501X and 2282del4) compared to those with vespid allergy (n = 56) and healthy controls (n = 30). Thus, filaggrin does not appear to have a downstream effect on the development of allergic disease, and it is indeed filaggrin's role in the epithelial function that is likely to determine the link between filaggrin mutations and allergic sensitisation.