Autoimmune bullous diseases (AIBDs) are a heterogeneous group of diseases characterized by cutaneous and mucosal vesicles, blisters, and erosions. Several factors can trigger this disease, including vaccines; but this entity remains very rare. We hypothesized that vaccination against coronavirus disease 2019 (COVID-19) could trigger an immunological response in genetically predisposed individuals. We report five cases of new-onset autoimmune bullous diseases triggered by the COVID-19 vaccine. Clinical and histopathological examinations confirmed the diagnosis of bullous pemphigoid (BP) in three patients and pemphigus in the other two. According to the French method of imputability, the pharmacovigilance investigation showed an I5B4 causality assessment score for the vaccines, interpreted as highly probable, for all the patients. The diagnosis of vaccine-induced autoimmune bullous dermatosis was highly suspected. One patient's condition improved by dermocorticoids alone, while the other four required oral corticosteroid therapy at 0.5 mg/kg/day, which led to a favorable outcome.

The association between blood groups ABO and different types of diseases was established in several previous studies. Our aim was to seek the possible association between the ABO blood group and breast cancer-associated prognostic factors. The Chi-squared analytic test was used to compare phenotypic ABO distribution among Moroccan blood donors and 442 cases of women suffering from breast carcinoma with archived files in Maternity Ward of University Hospital C.H.U Ibn Rochd between 2008 and 2011. High incidence of breast carcinoma was observed in blood type B patients (p < 0.05). Blood type B was associated with breast carcinomas overexpressing human epidermal growth factor receptor HER2 (p < 0.05) and high risk of cancer at age over 70 years (p < 0.001). Blood type A was associated with high risk of cancer among women younger than 35 years old. Blood type A and AB were associated with high incidence of lymph node metastasis (p < 0.05). Multivariate analysis has shown correlation between O blood type and estrogen receptor-positive tumor. Patients with blood group A, B, and AB were more likely to develop aggressive breast carcinoma. Further follow-up studies are necessary to clarify the role of ABH antigens in the progression of breast carcinoma.

Morbihan disease (MD) is a rare entity. Its nosography is unclear and its therapeutic management is difficult. We report a new case of MD. We report a case of a 51-year-old patient consulted in our department for a one year facial edema, erythema and papules reported by him, for which the patient was treated with cyclins, local and general corticotherapy, without improvement. The clinical examination found an important edema of the front and eyelids with an erythema of the cheeks covered with a few telangiectasias. The clinical, biological and histological findings lead to a diagnosis of Morbihan disease after excluding other diseases. Due to previous therapeutic failures, the patient was put on isotretinoin and furosemide with slight improvement. The particularity of our observation lies in the rarity and especially in the therapeutic difficulties encountered during this disease.

The aerial part of Thymelaea hirsuta (TH) is used as decoction in the treatment of different pathologies in folk medicine in Morocco. The present investigation was carried out to evaluate the potential of toxicity of an aqueous extract of TH and its hepatoprotective activity against CCl 4 -induced hepatic injury in rats. In the acute study, there were no signs of toxicity observed after oral administration of single dose of the extract (5 g/kg body weight). In the sub-chronic dose study, (given by gavages (4 ml/kg) to Wistar rats daily at: 0.0 g/kg, 0.5g/kg, 1 g/kg or 2 g/kg body weight for 4 weeks) no variation on biochemical parameters; serum glucose, creatinine and urea levels was observed compared to the control group. However, the serum levels of alanine aminotransferase (ALAT) and aspartate aminotransferase (ASAT) were markedly decreased (P < 0.05 and P<0.001 respectively) as compared to the controls. There were no significant differences in red blood cells count (p<0.05), in Hemoglobin and Hematocrit serum levels but a significant increase in white blood cells count (p<0.001) and in platelets (p< 0.05) for all doses tested. Histopathological examination of the liver, spleen and kidneys tissues at the end of the study showed normal architecture. The elevated serum enzymatic activities of ALAT and ASAT, due to carbon tetrachloride treatment (1 ml/kg CCl 4 every 72 h during 15 days) were restored towards normalization by the plant extracts. The biochemical observations were supplemented with histopathological examination of liver sections. The results indicate that this plant possesses no toxicity effects but hepatoprotective properties.

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