Genistein Prevents Hypoxia-Induced Cognitive Dysfunctions by Ameliorating Oxidative Stress and Inflammation in the Hippocampus.

Genistein (GE), a plant-derived isoflavone, is a polyphenolic non-steroidal compound. Studies showed that GE possesses anti-cancer, anti-inflammatory, anti-microbial, anti-oxidant, and anti-apoptotic activities. However, the neuroprotective role of GE in amnesia has not been studied. This study aimed to evaluate the anti-amnesic potential of GE in a mice model of hypoxia-induced amnesia and to understand the underlying mechanism. Mice were exposed to hypoxia (10% O2) and administered vehicle or GE (10, 20, 30 mg/kg) orally for 28 days. Thereafter, Morris water maze (MWM), novel object recognition (NOR), and passive avoidance task (PAT) were performed to evaluate cognitive behavior. Next, we performed biochemical tests and gene expression analysis to uncover the mechanism underlying GE mode of action. Our results showed that GE-treatment ameliorated hypoxia-induced cognitive dysfunctions in mice. Further, GE-treatment suppressed the oxidative stress in the hippocampus of amnesic mice as evidenced by reduced lipid peroxidation, reduced nitrite and ROS levels, and increased levels of reduced glutathione (GSH) and increased total antioxidant capacity. GE treatment reduced the expression of pro-inflammatory cytokines TNFα, IL1ß, IL6, and MCP-1 and increased the expression of anti-inflammatory cytokine IL10 in the hippocampus of amnesic mice. Finally, GE treatment enhanced the expression of neuroprotective genes including BDNF, CREB, CBP, and IGF1 in the hippocampus of amnesic mice. Altogether, our results showed that GE treatment prevents hypoxia-induced cognitive dysfunction in mice by reducing oxidative stress and suppressing neuroinflammation while increasing the expression of neuroprotective genes in the hippocampus.

Home remedies in different pediatric dermatoses: An observational study.

Traditional medicinal systems are widely practiced in the Indian subcontinent for a wide variety of diseases. We aimed to identify the various home remedies used by people to treat numerous pediatric dermatoses. It was an observational study carried out over 18 months in which 150 children attending our clinics were recruited. A detailed history regarding the various indigenous preparations used was taken from caregivers and noted in a proforma. A total of 150 children (M:F-89:61) aged between 4 months to 18 years were included. Atopic dermatitis and eczema (n = 28) were the most common dermatoses whereas the most common home remedies used for these either solo or in combination were coconut oil (13), olive oil (11), mustard oil (7), aloevera gel (6), ghee (6), curd (4), and honey (2). Acne was the second most common dermatoses (n = 22), products used for acne were Fuller's earth, aloevera gel, turmeric, gram flour, mustard oil, lime and sandalwood paste. Other dermatoses treated by indigenous products included impetigo and other bacterial infections, seborrheic dermatitis, dermatophytoses, verruca, molluscum, hypopigmentary disorders, etc. In Indian setup, home remedies are commonly used by the caregivers before visiting a dermatologist to treat various pediatric dermatoses.

Fixed cutaneous sporotrichosis treated with topical amphotericin B in an immune suppressed patient.

Both fixed cutaneous and lymphocutaneous sporotrichosis are associated with significant morbidity due to chronicity. Although treatment with itraconazole, saturated solution of potassium iodide or terbinafine is recommended in most cases, the described patient with fixed cutaneous sporotrichosis could not tolerate any of these. Her lesion healed after 8weeks of topical amphotericin-B (0.1% w/w). Topical amphotericin-B appears useful treatment modality for uncomplicated cutaneous sporotrichosis when systemic treatment needs deferment, remains contraindicated, or in pediatric patients.

Parthenium dermatitis: is parthenolide an effective choice for patch testing?

BACKGROUND: Patch test positivity to parthenolide was observed less often than expected in strongly suspected cases of parthenium dermatitis after Chemotechnique Diagnostics (Sweden) replaced parthenium extract with parthenolide (0.5% pet.) by itself while marketing its Indian baseline series for patch testing. OBJECTIVE: The study was performed to find whether parthenolide detects parthenium contact sensitivity more effectively than parthenium extract in patients clinically presenting with classic parthenium dermatitis. MATERIAL AND METHODS: One hundred consecutive patients with suspected parthenium dermatitis were patch tested prospectively with the Indian baseline series, parthenium extract (1% aq.) and parthenolide (0.5% pet.) between July 2011 and April 2012. RESULTS: Only 37 of 100 patients with suspected parthenium dermatitis (male/female ratio of 20:17) reacted to parthenium extract (32 patients), parthenolide (17 patients), or both (12 patients). Reactions to parthenium extract were generally stronger than reactions to parthenolide. CONCLUSION: Patch testing with parthenolide (0.5% pet.) detects fewer cases of suspected parthenium dermatitis than patch testing with parthenium extract (1% aq.).