A descriptive study of the clinical and etiological profile of balanoposthitis.

BACKGROUND: Balanoposthitis is defined as an inflammatory condition of glans penis and prepuce. There are wide variety of etiologies including both infectious and noninfectious conditions. This study attempts to throw light on information regarding clinical and microbiological aspects of balanoposthitis. OBJECTIVES: To study various clinical patterns, etiologies, and predisposing factors of balanoposthitis. METHODOLOGY: A descriptive study was undertaken on 106 cases who presented to sexually transmitted disease (STD) clinic with balanoposthitis between November 2017 and April 2019. A detailed history, physical examination, and investigations like KOH mount, leishman staining, gram staining, dark field microscopy, cultures, and other investigations were done wherever indicated. The data collected was tabulated and analyzed. RESULTS: In our study, infectious etiology was the most common and was found in 77.36% cases. About 13.41% of cases with infectious balanoposthitis had multiple etiological agents. Noninfectious etiology was found in 22.64% cases. The most common infectious cause of balanoposthitis was candida, noted in 59.76% cases, followed by herpes simplex virus (19.51%), human papilloma virus (13.41%), and scabies (8.54%). Among noninfectious etiologies, adverse drug reaction (4.72% of total cases) was the most common, followed by lichen planus (3.77%) and psoriasis (3.77%). There was significantly higher incidence of phimosis in diabetic patients with candidal balanoposthitis. CONCLUSION: Identifying the etiology facilitates early treatment and hence reduces the infectivity and transmission of disease and also the disease complications like phimosis. In addition, multiple infectious etiologies should always be kept in mind while evaluating STDs.

Squamous cell carcinoma of penis with bullous pemphigoid masquerading as lymphogranuloma venereum.

We report a case of a 60-year old unmarried male who presented with multiple ulcers and foul smelling discharge from the groin since 4 months and multiple tense bullae over the trunk of 1 month duration. Groove sign was present. Investigations for lymphogranuloma venereum (LGV) and other sexually transmitted diseases were negative. Histopathology from the ulcer in the groin and growth in the penis revealed squamous cell carcinoma (SCC). Skin biopsy of bulla was diagnostic of bullous pemphigoid (BP). We report a rare case of SCC masquerading as LGV with BP occurring as a paraneoplastic phenomenon.

Effect of artificial aging and surface treatment on bond strengths to dental zirconia.

The objective of this project was to study the influence of artificial aging and surface treatment on the microtensile bond strengths (µTBS) between zirconia and a phosphate monomer-based self-adhesive cement. Thirty zirconia disks (IPS e.max ZirCAD, Ivoclar Vivadent) were randomly assigned to two aging regimens: AR, used as received, which served as a control, and AG, artificial aging to simulate low-temperature degradation. Subsequently, the disks of each aging regimen were assigned to three surface treatments: NT, no surface treatment; CO, surface silicatization with CoJet sand (3M ESPE); and ZP, zirconia surface treated with Z-Prime Plus (Bisco Inc). Thirty discs were made of Filtek Z250 (3M ESPE) composite resin and luted to the zirconia discs using RelyX Unicem (3M ESPE). The specimens were sectioned with a diamond blade in X and Y directions to obtain bonded beams with a cross-section of 1.0 ± 0.2 mm. The beams were tested in tensile mode in a universal testing machine at a speed of 0.5 mm/min to measure µTBS. Selected beams were selected for fractographic analysis under the SEM. Statistical analysis was carried out with two-way analysis of variance and Dunnett T3 post hoc test at a significance level of 95%. The mean µTBS for the three AR subgroups (AR-NT, AR-CO, and AR-ZP) were significantly higher than those of the corresponding AG groups (p<0.0001). Both AR-CO and AR-ZP resulted in statistically significant higher mean bond strengths than the group AR-NT (p<0.006 and p<0.0001, respectively). Both AG-CO and AG-ZP resulted in statistically significant higher mean bond strengths than the group AG-NT (both at p<0.0001). Overall, AG decreased mean µTBS. Under the SEM, mixed failures showed residual cement attached to the zirconia side of the beams. CO resulted in a characteristic roughness of the zirconia surface. AR-ZP was the only group for which the amount of residual cement occupied at least 50% of the interface in mixed failures.

Anatomical alterations due to polyploidy in cassava, Manihot esculenta Crantz.

Information on anatomical structure is needed by breeders working on improvement for drought tolerance. For studying the effect of polyploidy on cassava anatomy and its significance to tolerance to drought, we induced a polyploidy type of a selected clone (UnB 530) by applying an aqueous solution of 0.2% colchicine on lateral buds for a period of 12 h. The stem identified as tetraploid was propagated to produce the whole plant. Free-hand cross-sections of the median portion between stem internodes were made. They were clarified using 50% sodium hypochlorite solution, stained with 1% safranin-alcian blue, passed through an ethanol series and butyl acetate and mounted in synthetic resin. The tetraploid type showed more prismatic and druse crystals in the cortical parenchyma, and its pericycle fibers had thicker walls. The secondary xylem of tetraploid types was wider than diploid ones, having thinner walls and less starch.

Wild Manihot species: botanical aspects, geographic distribution and economic value.

A total of 98 Manihot species have been recognized in the genus. All of them are native to the tropics of the New World, particularly Brazil and Mexico. The cultigen, Manihot esculenta Crantz (cassava), grows throughout the lowland tropics. Wild species vary in growth habit from acaulescent or short shrubs to tree-like. Because of their adaptations to different conditions, they are gene reservoirs for tackling many abiotic and biotic stresses such as improving root quality and resistance to diseases. They have been used successfully by the first author for improving protein content, seed-fertility, apomixis, resistance to mealy bug, and tolerance to drought. A table of the most important species from an economic viewpoint is presented.

Wild Manihot species: botanical aspects, geographic distribution and economic value

A total of 98 Manihot species have been recognized in the genus. All of them are native to the tropics of the New World, particularly Brazil and Mexico. The cultigen, Manihot esculenta Crantz (cassava), grows throughout the lowland tropics. Wild species vary in growth habit from acaulescent or short shrubs to tree-like. Because of their adaptations to different conditions, they are gene reservoirs for tackling many abiotic and biotic stresses such as improving root quality and resistance to diseases. They have been used successfully by the first author for improving protein content, seed-fertility, apomixis, resistance to mealy bug, and tolerance to drought. A table of the most important species from an economic viewpoint is presented.

Anatomical alterations due to polyploidy in cassava, Manihot esculenta Crantz

Information on anatomical structure is needed by breeders working on improvement for drought tolerance. For studying the effect of polyploidy on cassava anatomy and its significance to tolerance to drought, we induced a polyploidy type of a selected clone (UnB 530) by applying an aqueous solution of 0.2% colchicine on lateral buds for a period of 12 h. The stem identified as tetraploid was propagated to produce the whole plant. Free-hand cross-sections of the median portion between stem internodes were made. They were clarified using 50% sodium hypochlorite solution, stained with 1% safranin-alcian blue, passed through an ethanol series and butyl acetate and mounted in synthetic resin. The tetraploid type showed more prismatic and druse crystals in the cortical parenchyma, and its pericycle fibers had thicker walls. The secondary xylem of tetraploid types was wider than diploid ones, having thinner walls and less starch.

Pattern of sexually transmitted disease in Madurai, India.

The pattern of sexually transmitted disease (STD) in a public clinic in Madurai City, India, was studied for 10 years (1974-83). Syphilis was found to be the most common STD in men (28.3%) and trichomoniasis in women (39.6%). The tropical STDs (chancroid, lymphogranuloma venereum, and granuloma inguinale) formed a sizeable proportion (30.1%) of all STDs. A tendency to overdiagnose chancroid and lymphogranuloma venereum and a failure to detect many cases of gonorrhoea reflected a lack of laboratory facilities.