Acute toxicity of textile dye wastewaters (untreated and treated) of Sanganer on male reproductive systems of albino rats and mice

This study reports on the toxic effects of 15-days oral administration of untreated (Influent) and treated (Effluent) textile dye wastewaters on male reproductive systems of adult Swiss albino rats (age: 85–90 days) and mice (40–50 days). Textile dye wastewaters decreased body weight (7–25%) and reproductive organ weight (testis, epididymis, prostate gland and seminal vesicle, 2–48%). Similar trends were noted for total protein (14–70%), cholesterol (14–91%) and total lipid (10–30%) content of reproductive organs and spermatozoa, and for fructose levels in seminal vesicle (18–44%). Acid phosphatase activity in prostate however, was increased (11–44%) in the wastewater-exposed animals. Histopathological studies of treated animals revealed altered spermatogenesis, with higher sperm abnormalities, reduction in sperm counts (10–59%), and altered motility (14–56%). The magnitude of these abnormalities was stronger in rats versus mice, while among treatments, it was stronger in the Influent animals. Adverse effects improved when treated rats were allowed to recover 45 days in the control condition. Only recovered Effluent rats were capable of fertilizing normal females indicating that treated wastewater was less toxic; however, in comparison to control rats, litter size and body weight gains of F₁ and F₂ generations were adversely affected. Thus, the present study has established toxicity of both untreated and treated textile dye wastewater on reproductive biology of male Albino mice and rats.     

A novel surgical approach to subcondylar fractures of mandible

Submandibular and intraoral approaches are the 2 most commonly used methods to access mandibular fractures. Although they provide excellent access to repair fractures of body and ramus, we have found it difficult to manage subcondylar fractures using either of these approaches. An extended preauricular approach is also described for condylar and subcondylar fractures of the mandible, but it results in inappropriately extensive dissection and a larger scar, especially for an isolated subcondylar fracture. We describe a novel approach for subcondylar fractures that provides direct access to the fracture site. The incision line is located just above the lower border of the mandible and lies accurately and safely between the marginal mandibular and the buccal branches of the facial nerve. We also performed cadaver head dissection to follow and locate facial nerve branches in relation to the proposed incision. To date, we have operated on 38 patients and have found excellent functional results and acceptable aesthetic outcome.     

Lexical acquisition in progressive aphasia and frontotemporal dementia

We investigated the characteristics of language difficulty in frontotemporal dementia (FTD) by exposing these patients to a new verb in a naturalistic manner and then assessing acquisition of the grammatical, semantic, and thematic matrix information associated with the new word. We found that FTD patients have difficulty relative to healthy seniors in their acquisition of the new verb, but that progressive nonfluent aphasia (PNFA), semantic dementia (SD), and social/dysexecutive variant (SOC/EXEC) subgroups of FTD demonstrate relatively distinct impairment profiles. Specifically, PNFA patients showed relative difficulty assigning the new verb to its correct grammatical form class, reflecting compromised processing of the associated grammatical information. SD patients were impaired at associating the new word with its pictorial representation, suggesting impaired processing of the new verb's semantic attributes. SOC/EXEC patients showed their greatest difficulty judging violations of the new word's associated thematic roles, implying that limited executive resources underlie in part the difficulty in integrating grammatical and semantic information into a coherent thematic matrix. Similar impairment profiles were seen during a follow-up session one week after the initial evaluation. These deficits in lexical acquisition reflect the breakdown of a language-processing system that consists of highly interactive but partially dissociable grammatical, semantic, and resource-based components, leading to relatively distinct language-processing deficits in each subgroup of patients with FTD.     

Transverse Colon Volvulus with Chilaiditis Syndrome

Volvulus of transverse colon is a rare cause of large bowel obstruction. To our knowledge only 75 cases have been reported in the world literature and additionally only three cases of transverse colon volvulus with Chilaiditis syndrome have been reported to date. Because of its rarity here we report a case of transverse colon volvulus which was indeed associated with Chilaiditis syndrome. This is probably the fourth case of Chilaiditis syndrome caused by transverse colon volvulus.